Michael Fang, M.D.
NPI 1154338580 · Nephrology Physician · Downey, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michael Fang, M.D. is a Nephrology Physician provider in Downey, CA (NPI 1154338580).
Provider details
- NPI number
- 1154338580
- Entity type
- Individual
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 222907 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 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
293 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 119 | $77 |
| Dialysis Services, 4 Or More Physician Visits Per Month (20 Years Or Older)90960 | 56 | $351 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 45 | $169 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 39 | $78 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 34 | $76 |
Typical Medicare-allowed amounts for these services range $76–$351 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 15 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Dapagliflozin Propanediolbrand: Farxiga | 102 | 17 |
| Hydralazine Hcl | 61 | 21 |
| Finerenonebrand: Kerendia | 51 | — |
| Amlodipine Besylate | 50 | 13 |
| Dapagliflozin Propanediolbrand: Dapagliflozin | 37 | — |
| Furosemide | 31 | 11 |
| Losartan Potassium |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$92 across 10 records (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
- 2006-08-01
- Last updated
- 2018-10-01
Frequently asked questions
- What is Michael Fang's NPI number?
- Michael Fang's National Provider Identifier (NPI) is 1154338580, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Fang's specialty?
- Michael Fang is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is Michael Fang located?
- Michael Fang's practice location on file with NPPES is 11480 Brookshire Ave, Downey, CA 90241-5024.
- What is Michael Fang's phone number?
- The practice phone number listed in the NPPES registry for Michael Fang is (626) 337-2265.
- Does Michael Fang accept Medicare?
- Michael Fang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Michael Fang's NPI active?
- Yes — Michael Fang's NPI (1154338580) is active in the NPPES registry as of the last update on 2018-10-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.