John Fisher, M.D.
NPI 1699777334 · Nephrology Physician · Palmdale, CA
Enrolled with Medicare as Practitioner - Nephrology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Fisher, M.D. is a Nephrology Physician provider in Palmdale, CA (NPI 1699777334).
Provider details
- NPI number
- 1699777334
- Entity type
- Individual
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- A41776 (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
20 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
891 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) |
|---|---|---|
| Dialysis Services, 4 Or More Physician Visits Per Month (20 Years Or Older)90960 | 388 | $369 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 364 | $138 |
| Dialysis Services, 2-3 Physician Visits Per Month (20 Years Or Older)90961 | 86 | $307 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 40 | $179 |
| Dialysis Services, 1 Physician Visit Per Month (20 Years Or Older)90962 | 13 | $213 |
Typical Medicare-allowed amounts for these services range $138–$369 (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 · 48 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Metoprolol Succinate | 254 | 85 |
| Amlodipine Besylate | 234 | 81 |
| Clonidine Hcl | 151 | 53 |
| Sevelamer Carbonate | 143 | 39 |
| Furosemide | 132 | 37 |
| Sucroferric Oxyhydroxidebrand: Velphoro | 98 | 27 |
| Nifedipinebrand: Nifedipine Er | 91 | 29 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$16 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
- 2005-08-12
- Last updated
- 2011-12-13
Frequently asked questions
- What is John Fisher's NPI number?
- John Fisher's National Provider Identifier (NPI) is 1699777334, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Fisher's specialty?
- John Fisher is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is John Fisher located?
- John Fisher's practice location on file with NPPES is 1007 W Avenue M14, Palmdale, CA 93551-1443.
- What is John Fisher's phone number?
- The practice phone number listed in the NPPES registry for John Fisher is (661) 265-7019.
- Does John Fisher accept Medicare?
- John Fisher is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Fisher's NPI active?
- Yes — John Fisher's NPI (1699777334) is active in the NPPES registry as of the last update on 2011-12-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.