Physician Profile
Guy Vin Chang, M.D.
Unclaimed ProfileAbout Dr. Chang
Guy Vin Chang, M.D. is a healthcare provider in Washington, DC specializing in geriatric medicine. Guy Vin is also listed as specializing in student in an organized health care education program. Medicare claims data shows Guy Vin provided 1,183 services to 831 patients. The services billed most often include residence visit for established patient with high level of medical decision making, per day, if using time, at least 60 minutes, subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes, and initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Specialty
Credentials & Licensing
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (202) 877-7000
- Email not available
Practice Locations
110 IRVING ST NW
Washington, DC 20010
1400 W 22nd St
Sioux Falls, SD 57105
1305 W 18th St
Sioux Falls, SD 57105
5323 Harry Hines Blvd
Dallas, TX 75390
353 Fairmont Blvd
Rapid City, SD 57701
Conditions Commonly Evaluated or Treated
Within Geriatric Medicine generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Most searched conditions
Balance & Mobility
- Senior Dizziness
- Walking Problems
Blood Health
- Senior Anemia
Bones & Joints
- Broken Hip Recovery
- Osteoarthritis
Brain & Nerves
- Delirium
- Dementia with behavioral symptoms
- Essential tremor
- Normal Pressure Hydrocephalus
- Parkinson's disease
Cardiovascular
Cognitive Health
- Dementia Wandering
- Mild cognitive impairment
Digestive
Ears & Hearing
General Health
- Dehydration In Seniors
- Elderly Frailty
- Senior Malnutrition
- Unexplained Weight Loss
Hormone Health
- Underactive Thyroid In Seniors
Infections
Joints & Pain
Lung Health
Men's Health
Mental Health
- Caregiver burnout
- Restlessness And Agitation
- Senior Anxiety
- Senior Depression
Mobility
- Balance Problems and Fall Risk
- Muscle Loss And Weakness
Oral Health
Pain
- Chronic Pain In Seniors
Skin & Wounds
- Bedsores
- Diabetic Foot Sores
- Non-Healing Wounds
- Thinning and Tearing Skin
Sleep
- Senior Insomnia
Spine & Pain
Urinary & Bladder
Urinary Health
Procedures & services
Most searched procedures
- Comprehensive geriatric assessment
- Fall risk assessment
- Memory testing
Bone Health
Cardiovascular
- Orthostatic Blood Pressure Check
Care Placement
- Nursing Home Placement Assessment
Caregiver Support
- Dementia Caregiver Training
Chronic Disease Management
- Senior Diabetes Target Adjustment
Cognitive Health
- Dementia Wandering Safety Plan
Digestive
- Constipation And Bowel Management
- Swallowing safety evaluation coordination
Ear Care
End-of-Life Planning
- POLST Or DNR Consultation
Foot Care
- Routine Senior Foot And Nail Care
General Geriatric Care
- Senior Telehealth Consultation
General Health
- Outpatient IV Hydration
Home Care
- Home Health Certification
- In-Home Care Needs Assessment
Legal & Cognitive
- Mental Competency Evaluation
Medication Management
Mental Health
- Agitation And Behavior Management Planning
- Senior Depression Screening
Mobility
Mobility & Equipment
- Walker Or Wheelchair Prescription
Nutrition
- High-Calorie Senior Nutrition Plan
- Senior Nutrition Assessment
Outpatient Care
- In-Home Doctor Visit
- Post-hospital transitional care
Pain & Injections
Pain Management
- Safe Senior Pain Management Plan
Palliative & Hospice
- Comfort care transition
- Hospice Eligibility Evaluation
Patient Safety
- Elder Abuse And Neglect Assessment
Planning & Support
- Advance Care Planning
- Assisted Living Placement Assessment
- Caregiver Counseling
- Long-Term Care Insurance Evaluation
- Medical Power Of Attorney Consultation
Preventive Care
- Chronic Illness Checkup
- Medicare annual wellness visit
- Shingles And Senior Vaccinations
Respiratory
- Oxygen Therapy Evaluation
Safety & Daily Function
- Daily Living Activities Evaluation
- Home Safety Evaluation
- Senior Driving Safety Assessment
Sensory Health
- Hearing Aid Fitting Referral
Surgical Clearance
- Senior Pre-Surgery Clearance
Urinary & Bladder
- Postvoid residual measurement
- Urinary Catheter Change And Care
Urinary Health
- Scheduled Toileting Program
Wound Care
Procedures Most Often Billed to Medicare
1,183 services · 831 patients · 19 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Insertion of needle into vein for collection of blood sample | Procedure | 36415 |
57 | Less often than most peers in Geriatric Medicine |
| Influenza vaccine split virus, preservative free | Treatment | 90662 |
41 | As often as other peers in Geriatric Medicine |
| Residence visit for established patient with high level of medical decision making, per day, if using time, at least 60 minutes | Office visit | 99350 |
313 | More than most peers in Geriatric Medicine |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | Office visit | 99233 |
223 | More often than most peers in Geriatric Medicine |
| Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | Office visit | 99223 |
95 | More often than most peers in Geriatric Medicine |
| Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and | Billing code | G0180 |
63 | More often than most peers in Geriatric Medicine |
| Prolonged home or residence evaluation and management service(s) beyond the total time for the primary service (when the primary service has been selected using time on the date of the primary service); each additional 15 minutes by the physician or quali | Billing code | G0318 |
47 | As often as other peers in Geriatric Medicine |
| Administration of pneumococcal, influenza, hepatitis b, and/or covid-19 vaccine inside a patient's home; reported only once per individual home per date of service when such vaccine administration(s) are performed at the patient's home | Billing code | M0201 |
43 | Too few peers to compare |
| Advance care planning, first 30 minutes | Office visit | 99497 |
43 | As often as other peers in Geriatric Medicine |
| Administration of influenza virus vaccine | Billing code | G0008 |
42 | As often as other peers in Geriatric Medicine |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Related specialists at this location 8
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other geriatricians in Washington 8
Same specialty, same city.
More connections — 24 related providers in 3 groups
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 2014 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Insertion of needle into vein for collection of blood sample 8
Providers in DC who bill this service to Medicare most often.
Common questions
What does Guy Vin Chang specialize in?
Guy Vin Chang is a geriatrician in Washington, DC. That is the designation recorded for this NPI in the federal registry, where it is listed as “Geriatric Medicine”.
NPI registry
Where is Guy Vin Chang located?
Guy Vin Chang is listed at 110 Irving St Nw, Washington, DC 20010. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Guy Vin Chang's phone number?
The number on file is (202) 877-7000. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Guy Vin Chang?
Guy Vin Chang's National Provider Identifier is 1154718955. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Guy Vin Chang train?
Guy Vin Chang attended Other, graduating in 2014. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Guy Vin Chang have?
Guy Vin Chang has 12 years experience. Calculated from a graduation year of 2014, reported in the CMS National Downloadable File.
CMS public data
What does Guy Vin Chang do most often?
According to Medicare billing data, Guy Vin Chang performs procedures including insertion of needle into vein for collection of blood sample; provides treatments such as influenza vaccine split virus, preservative free, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Guy Vin Chang's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Guy Vin Chang. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.