Nishith Singh, M.D.
NPI 1699967125 · Internal Medicine Physician · San Francisco, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nishith Singh, M.D. is a Internal Medicine Physician provider in San Francisco, CA (NPI 1699967125).
Provider details
- NPI number
- 1699967125
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A140188 (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
18 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
2,791 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) |
|---|---|---|
| Subsequent Nursing Facility Care With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99309 | 1,360 | $115 |
| Subsequent Nursing Facility Care With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99309 | 325 | $125 |
| Subsequent Nursing Facility Care With High Level of Medical Decision Making, Per Day, If Using Time, at Least 45 Minutes99310 | 186 | $163 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 137 | $88 |
| Advance Care Planning, First 30 Minutes99497 | 133 | $79 |
| Initial Nursing Facility Care With High Level of Medical Decision Making, Per Day, If Using Time, 50 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 16 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 45 | 25 |
| Oxycodone Hcl | 34 | 18 |
| Levothyroxine Sodium | 33 | — |
| Trazodone Hcl | 31 | 16 |
| Potassium Chloride | 28 | 11 |
| Quetiapine Fumarate | 24 | — |
| Ondansetron |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-08-17
- Last updated
- 2024-08-27
- Certified
- 2024-08-27
Frequently asked questions
- What is Nishith Singh's NPI number?
- Nishith Singh's National Provider Identifier (NPI) is 1699967125, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nishith Singh's specialty?
- Nishith Singh is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Nishith Singh located?
- Nishith Singh's practice location on file with NPPES is 601 Van Ness Ave Ste E3619, San Francisco, CA 94102-3200.
- What is Nishith Singh's phone number?
- The practice phone number listed in the NPPES registry for Nishith Singh is (415) 531-9047.
- Does Nishith Singh accept Medicare?
- Nishith Singh is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Nishith Singh's NPI active?
- Yes — Nishith Singh's NPI (1699967125) is active in the NPPES registry as of the last update on 2024-08-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.