Sunita Singh, MD
NPI 1649508581 · Infectious Disease Physician · Santa Cruz, CA
Enrolled with Medicare as Practitioner - Infectious Disease · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sunita Singh, MD is a Infectious Disease Physician provider in Santa Cruz, CA (NPI 1649508581).
Provider details
- NPI number
- 1649508581
- Entity type
- Individual
- Primary specialty
- Infectious Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- A110275 (CA)
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 tenure28% of score
16 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
1,461 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 Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 1,142 | $84 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 139 | $139 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 92 | $101 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 88 | $143 |
Typical Medicare-allowed amounts for these services range $84–$143 (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 · 8 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Ceftriaxone Sodiumbrand: Ceftriaxone | 22 | — |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 18 | 13 |
| Vancomycin Hcl | 17 | — |
| Cefazolin Sodium | 15 | — |
| Doxycycline Hyclate | 15 | — |
| Bictegrav/Emtricit/Tenofov Alabrand: Biktarvy | 12 | — |
| Meropenem | 12 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2009-12-04
- Last updated
- 2019-04-22
Frequently asked questions
- What is Sunita Singh's NPI number?
- Sunita Singh's National Provider Identifier (NPI) is 1649508581, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sunita Singh's specialty?
- Sunita Singh is listed in the NPPES registry with a primary specialty of Infectious Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Sunita Singh located?
- Sunita Singh's practice location on file with NPPES is 1595 Soquel Dr Ste 411, Santa Cruz, CA 95065-1724.
- What is Sunita Singh's phone number?
- The practice phone number listed in the NPPES registry for Sunita Singh is (831) 475-8834.
- Does Sunita Singh accept Medicare?
- Sunita Singh is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sunita Singh's NPI active?
- Yes — Sunita Singh's NPI (1649508581) is active in the NPPES registry as of the last update on 2019-04-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.