Patricia Chang, M.D.
NPI 1003350984 · Family Medicine Physician · Santa Monica, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Patricia Chang, M.D. is a Family Medicine Physician provider in Santa Monica, CA (NPI 1003350984).
Provider details
- NPI number
- 1003350984
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- C146039 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
9 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
622 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 281 | $93 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 104 | $70 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 94 | $57 |
| 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'SG2211 | 39 | $17 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 27 | $9 |
| Administration of Influenza Virus Vaccine |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 55 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 286 | 90 |
| Levothyroxine Sodium | 244 | 69 |
| Rosuvastatin Calcium | 177 | 50 |
| Losartan Potassium | 150 | 45 |
| Metformin Hcl | 133 | 40 |
| Amlodipine Besylate | 115 | 33 |
| Lisinopril |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$22 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2016-12-12
- Last updated
- 2017-07-25
Frequently asked questions
- What is Patricia Chang's NPI number?
- Patricia Chang's National Provider Identifier (NPI) is 1003350984, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Patricia Chang's specialty?
- Patricia Chang is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Patricia Chang located?
- Patricia Chang's practice location on file with NPPES is 1131 Wilshire Blvd, Santa Monica, CA 90401-2061.
- What is Patricia Chang's phone number?
- The practice phone number listed in the NPPES registry for Patricia Chang is (310) 395-5588.
- Does Patricia Chang accept Medicare?
- Patricia Chang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Patricia Chang's NPI active?
- Yes — Patricia Chang's NPI (1003350984) is active in the NPPES registry as of the last update on 2017-07-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.