Ramani Nathan, MD
NPI 1487623724 · Nephrology Physician · Garden Grove, CA
Enrolled with Medicare as Practitioner - Nephrology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ramani Nathan, MD is a Nephrology Physician provider in Garden Grove, CA (NPI 1487623724).
Provider details
- NPI number
- 1487623724
- Entity type
- Individual
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A26761 (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
146 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) |
|---|---|---|
| Dialysis Services, 4 Or More Physician Visits Per Month (20 Years Or Older)90960 | 146 | $369 |
Typical Medicare-allowed amounts for these services range $369–$369 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote 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 · 4 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Parenteral Amino Acid 20% No.1brand: Prosol | 26 | — |
| Sevelamer Carbonate | 24 | 11 |
| Calcium Acetate | 22 | — |
| Pantoprazole Sodium | 18 | — |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-03-17
- Last updated
- 2023-11-29
- Certified
- 2023-11-29
Frequently asked questions
- What is Ramani Nathan's NPI number?
- Ramani Nathan's National Provider Identifier (NPI) is 1487623724, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ramani Nathan's specialty?
- Ramani Nathan is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is Ramani Nathan located?
- Ramani Nathan's practice location on file with NPPES is 12665 Garden Grove Blvd Ste 211, Garden Grove, CA 92843-1916.
- What is Ramani Nathan's phone number?
- The practice phone number listed in the NPPES registry for Ramani Nathan is (714) 636-2890.
- Does Ramani Nathan accept Medicare?
- Ramani Nathan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ramani Nathan's NPI active?
- Yes — Ramani Nathan's NPI (1487623724) is active in the NPPES registry as of the last update on 2023-11-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.