Subrahmanyam Nasika, M.D.
NPI 1548449846 · Nephrology Physician · Stockton, CA
Enrolled with Medicare as Practitioner - Nephrology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Subrahmanyam Nasika, M.D. is a Nephrology Physician provider in Stockton, CA (NPI 1548449846).
Provider details
- NPI number
- 1548449846
- Entity type
- Individual
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A108186 (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
18 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
2,892 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 | 1,459 | $80 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 419 | $81 |
| Dialysis Services, 4 Or More Physician Visits Per Month (20 Years Or Older)90960 | 295 | $363 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 238 | $121 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 151 | $83 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 69 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Calcitriol | 534 | 155 |
| Furosemide | 346 | 116 |
| Amlodipine Besylate | 324 | 110 |
| Losartan Potassium | 303 | 100 |
| Hydralazine Hcl | 234 | 71 |
| Tamsulosin Hcl | 232 | 77 |
| Sevelamer Carbonate | 182 | 52 |
| Carvedilol |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,039 across 47 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
- 2007-11-02
- Last updated
- 2013-09-09
Frequently asked questions
- What is Subrahmanyam Nasika's NPI number?
- Subrahmanyam Nasika's National Provider Identifier (NPI) is 1548449846, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Subrahmanyam Nasika's specialty?
- Subrahmanyam Nasika is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is Subrahmanyam Nasika located?
- Subrahmanyam Nasika's practice location on file with NPPES is 1801 E March Ln, Stockton, CA 95210-6629.
- What is Subrahmanyam Nasika's phone number?
- The practice phone number listed in the NPPES registry for Subrahmanyam Nasika is (209) 546-1868.
- Does Subrahmanyam Nasika accept Medicare?
- Subrahmanyam Nasika is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Subrahmanyam Nasika's NPI active?
- Yes — Subrahmanyam Nasika's NPI (1548449846) is active in the NPPES registry as of the last update on 2013-09-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.