Physician Profile
Jason K. Chang, M.D.
Unclaimed ProfileAbout Dr. Chang
Jason K. Chang, M.D. is a healthcare provider in Sacramento, CA specializing in internal medicine. Jason trained at University of Hawaii John A. Burns School of Medicine, graduating in 1991. Medicare claims data shows Jason provided 1,121 services to 737 patients. The services billed most often include established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more, visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient', and established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more.
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
- (916) 734-7777
- Email not available
Practice Locations
2825 J ST STE 300
Sacramento, CA 95816
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
Cardiometabolic
Digestive and liver
Endocrine, blood, and bone
Infectious disease
Kidney and urinary
Respiratory
Blood & Circulation
Blood disorders
Brain & Nerves
Brain and nerves
Cardiac and vascular
Digestive
Heart & Circulation
Infections
Kidney & Bladder
Lungs & Breathing
Mental Health
Neurologic and behavioral
Pain
Rheumatologic and pain
Procedures & services
Most searched procedures
Preventive and evaluation
Screening and diagnostic testing
Bones & Joints
Brain and nerves
Cancer screening
Digestive
Exams & Consultations
Heart & Circulation
Heart health
Imaging referral
Immunizations
Lab tests
Lungs & Breathing
Metabolic & Weight
Minor procedures
Office procedures
Office Procedures
Pain management
Preventive & Routine Care
Screenings & Diagnostics
Sexual health
Procedures Most Often Billed to Medicare
1,121 services · 737 patients · 13 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Influenza vaccine split virus, preservative free | Treatment | 90662 |
46 | As often as other peers in Internal Medicine |
| Injection of drug or substance under skin or into muscle | Treatment | 96372 |
45 | As often as other peers in Internal Medicine |
| Sarscov2 vac 50 mcg/0.5ml im | Treatment | 91322 |
41 | More often than most peers in Internal Medicine |
| Admn sarscov2 vacc 1 dose | Treatment | 90480 |
41 | More often than most peers in Internal Medicine |
| Routine electrocardiogram (ecg) using at least 12 leads with tracing | Treatment | 93005 |
15 | Less often than most peers in Internal Medicine |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
417 | More often than most peers in Internal Medicine |
| Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient' | Billing code | G2211 |
217 | More often than most peers in Internal Medicine |
| Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more | Office visit | 99215 |
97 | More often than most 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 |
84 | As often as other peers in Internal Medicine |
| Administration of influenza virus vaccine | Billing code | G0008 |
51 | As often as other 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 internists at this location 8
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 3
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 internists in Sacramento 8
Same specialty, same city.
Trained at University of Hawaii John A. Burns School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 1991 at University of Hawaii John A. Burns School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Influenza vaccine split virus, preservative free 8
Providers in CA who bill this service to Medicare most often.
Common questions
What is Jason K. Chang's specialty?
Jason K. Chang is an internist in Sacramento, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Internal Medicine”.
NPI registry
Where can I find Jason K. Chang?
Jason K. Chang is listed at 2825 J St Ste 300, Sacramento, CA 95816. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Jason K. Chang?
The number on file is (916) 734-7777. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Jason K. Chang?
Jason K. Chang's National Provider Identifier is 1992787485. 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
What is Jason K. Chang's education?
Jason K. Chang attended University of Hawaii John A. Burns School of Medicine, graduating in 1991. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Jason K. Chang have?
Jason K. Chang has 35 years experience. Calculated from a graduation year of 1991, reported in the CMS National Downloadable File.
CMS public data
What is Jason K. Chang known for?
According to Medicare billing data, Jason K. Chang provides treatments such as influenza vaccine split virus, preservative free and injection of drug or substance under skin or into muscle, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Jason K. Chang's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Jason K. 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.