Chien Fang, MD
NPI 1922071398 · Internal Medicine Physician · San Marino, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Chien Fang, MD is a Internal Medicine Physician provider in San Marino, CA (NPI 1922071398).
Provider details
- NPI number
- 1922071398
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- G69728 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
1,732 Medicare services, 2024 (ranked within specialty)
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 methodology.
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 Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 377 | $99 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 365 | $139 |
| 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 | 363 | $17 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 208 | $141 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 | 149 | $16 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 88 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Rosuvastatin Calcium | 273 | 97 |
| Levothyroxine Sodium | 266 | 83 |
| Atorvastatin Calcium | 214 | 78 |
| Amlodipine Besylate | 199 | 75 |
| Metformin Hcl | 158 | 53 |
| Losartan Potassium | 151 | 55 |
| Alendronate Sodium |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-02-08
- Last updated
- 2010-06-14
Frequently asked questions
- What is Chien Fang's NPI number?
- Chien Fang's National Provider Identifier (NPI) is 1922071398, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Chien Fang's specialty?
- Chien Fang is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Chien Fang located?
- Chien Fang's practice location on file with NPPES is 375 Huntington Dr, San Marino, CA 91108-2357.
- What is Chien Fang's phone number?
- The practice phone number listed in the NPPES registry for Chien Fang is (626) 441-4231.
- Does Chien Fang accept Medicare?
- Chien Fang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Chien Fang's NPI active?
- Yes — Chien Fang's NPI (1922071398) is active in the NPPES registry as of the last update on 2010-06-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.