Physician Profile
Phong K. Nguyen, M.D
Unclaimed ProfileAbout Dr. Nguyen
Based in Redlands, CA, Phong K. Nguyen, M.D is listed in the NPI registry under internal medicine. Phong graduated from University of California, Irvine, California College of Medicine in 1987. Phong is also listed as specializing in emergency medicine. According to Medicare claims data, Phong cared for 477 Medicare patients across 1,108 services. The services billed most often include residence visit for established patient with straightforward medical decision making, per day, if using time, at least 15 minutes, residence visit for new patient with moderate level of medical decision making, per day, if using time, at least 60 minutes, and residence visit for established patient with low level of medical decision making, per day, if using time, at least 30 minutes.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it — free, and no identity document with a practice or institutional email.
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
- (909) 335-5500
- Email not available
Practice Locations
350 TERRACINA BLVD
Redlands, CA 92373
Conditions Commonly Evaluated or Treated
Within Internal 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
- Allergies
- Diabetes
- Flu
- Hypothyroidism
- Strep throat
- UTI
Cardiometabolic
- High blood pressure
- High cholesterol
Digestive and liver
- Acid reflux
- Fatty liver disease
- IBS
Endocrine, blood, and bone
- Gout
Infectious disease
- Shingles
Kidney and urinary
- Chronic kidney disease
- Enlarged prostate
Respiratory
- Acute bronchitis
- Asthma
- COPD
Blood & Circulation
- Blood clots
Blood disorders
- Anemia
Brain & Nerves
- Alzheimer's disease
Brain and nerves
- Vertigo
Cardiac and vascular
- AFib
Digestive
- Diverticulitis
Heart & Circulation
- Heart disease
Infections
- Impetigo
Kidney & Bladder
- Overactive Bladder and Leakage
Lungs & Breathing
- Sleep apnea
Mental Health
- Generalized anxiety disorder
- Insomnia and Sleep Problems
Neurologic and behavioral
- Depression
- Migraines
Pain
- Back pain
Rheumatologic and pain
- Osteoarthritis
Procedures & services
Most searched procedures
- Annual physical
- Blood test
- Flu shot
- Medicare wellness visit
- Sick visit
- TB test
- Well-woman exam
Preventive and evaluation
- Medication management
- Post-hospital transitional care
Screening and diagnostic testing
- EKG
- Spirometry
Bones & Joints
- Trigger Point Injections
Brain and nerves
- Epley Maneuver
Cancer screening
- Colon Cancer Screening Referral
- Mammogram Referral
Digestive
- Endoscopy
Exams & Consultations
- Pre-Op Clearance Exam
Heart & Circulation
- Blood Pressure Check
- Heart monitor
Heart health
- Cardiac Stress Test Referral
Imaging referral
- Abdominal Ultrasound Referral
Immunizations
- Tetanus shot
Lab tests
- Urinalysis
Lungs & Breathing
- At-Home Sleep Study Order
Metabolic & Weight
- Weight Loss Injections and Medication
Minor procedures
- Ingrown toenail removal
- Suture removal
Office procedures
- Cryotherapy for skin lesions
- Earwax removal
- Incision and drainage of an abscess
- Skin biopsy
Office Procedures
- Skin Tag and Mole Removal
- Vitamin B12 Injections
- Wart Removal
Pain management
- Knee Joint Injection
Preventive & Routine Care
- Smoking cessation counseling
Screenings & Diagnostics
- Bone Density Scan Referral
- Diabetes Screening and A1C Test
Sexual health
- STI Testing
Procedures Most Often Billed to Medicare
1,108 services · 477 patients · 12 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Ultrasound of both sides of head and neck blood flow | Treatment | 93880 |
11 | Less often than most peers in INTERNAL MEDICINE |
| Ultrasound of heart with color-depicted blood flow, rate, direction and valve function | Treatment | 93306 |
11 | Less often than most peers in INTERNAL MEDICINE |
| Residence visit for established patient with straightforward medical decision making, per day, if using time, at least 15 minutes | Office visit | 99347 |
636 | More than most peers in INTERNAL MEDICINE |
| Residence visit for new patient with moderate level of medical decision making, per day, if using time, at least 60 minutes | Office visit | 99344 |
92 | More than most peers in INTERNAL MEDICINE |
| Residence visit for established patient with low level of medical decision making, per day, if using time, at least 30 minutes | Office visit | 99348 |
87 | As often as other peers in INTERNAL MEDICINE |
| Management using the results of remote vital sign monitoring per calendar month, first 20 minutes | Office visit | 99457 |
71 | Less often than most peers in INTERNAL MEDICINE |
| Chronic pain management and treatment, monthly bundle including, diagnosis; assessment and monitoring; administration of a validated pain rating scale or tool; the development, implementation, revision, and/or maintenance of a person-centered care plan th | Billing code | G3002 |
47 | As often as other peers in INTERNAL MEDICINE |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
42 | Less often than most peers in INTERNAL MEDICINE |
| Management using the results of remote vital sign monitoring per calendar month, each additional 20 minutes | Office visit | 99458 |
38 | Less often than most peers in INTERNAL 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 |
32 | More often than most peers in INTERNAL 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.
Other internal medicines at this location 2
Same specialty, same street address — most likely the same department or group.
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.
More connections — 32 related providers in 4 groups
Other internal medicines in Redlands 8
Same specialty, same city.
Trained at University of California, Irvine, California College of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 1987 at University of California, Irvine, California College of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Ultrasound of both sides of head and neck blood flow 8
Providers in CA who bill this service to Medicare most often.
Common questions
What kind of doctor is Phong K. Nguyen?
Phong K. Nguyen is an internal medicine in Redlands, CA. That is the designation recorded for this NPI in the federal registry.
NPI registry
What is Phong K. Nguyen's address?
Phong K. Nguyen is listed at 350 Terracina Blvd, Redlands, CA 92373. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Phong K. Nguyen?
The number on file is (909) 335-5500. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Phong K. Nguyen's NPI number?
Phong K. Nguyen's National Provider Identifier is 1770699506. 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 Phong K. Nguyen train?
Phong K. Nguyen attended University of California, Irvine, California College of Medicine, graduating in 1987. This comes from the CMS National Downloadable File.
CMS public data
How long has Phong K. Nguyen been practicing?
Phong K. Nguyen has 39 years experience. Calculated from a graduation year of 1987, reported in the CMS National Downloadable File.
CMS public data
What procedures does Phong K. Nguyen perform?
According to Medicare billing data, Phong K. Nguyen provides treatments such as ultrasound of both sides of head and neck blood flow and ultrasound of heart with color-depicted blood flow, rate, direction and valve function, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Phong K. Nguyen confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Phong K. Nguyen. 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.