Sudershan Singh, MD
NPI 1255597571 · Infectious Disease Physician · Woodland, CA
Enrolled with Medicare as Practitioner - Infectious Disease · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sudershan Singh, MD is a Infectious Disease Physician provider in Woodland, CA (NPI 1255597571).
Provider details
- NPI number
- 1255597571
- Entity type
- Individual
- Primary specialty
- Infectious Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A134241 (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
17 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
239 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 50 Minutes99233 | 100 | $120 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 78 | $135 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 28 | $176 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 22 | $190 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 11 | $230 |
Typical Medicare-allowed amounts for these services range $120–$230 (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 · 14 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Dolutegravir/Rilpivirinebrand: Juluca | 27 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 26 |
| Doxycycline Hyclate | 24 |
| Bictegrav/Emtricit/Tenofov Alabrand: Biktarvy | 23 |
| Sulfamethoxazole/Trimethoprimbrand: Sulfamethoxazole-Trimethoprim | 21 |
| Fluconazole | 20 |
| Cephalexin | 17 |
| Tenofovir Disoproxil Fumarate | 15 |
| Vancomycin Hcl | 15 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2008-08-06
- Last updated
- 2020-07-23
- Certified
- 2020-07-23
Frequently asked questions
- What is Sudershan Singh's NPI number?
- Sudershan Singh's National Provider Identifier (NPI) is 1255597571, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sudershan Singh's specialty?
- Sudershan Singh is listed in the NPPES registry with a primary specialty of Infectious Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Sudershan Singh located?
- Sudershan Singh's practice location on file with NPPES is 632 W Gibson Rd, Woodland, CA 95695-5169.
- What is Sudershan Singh's phone number?
- The practice phone number listed in the NPPES registry for Sudershan Singh is (530) 668-2600.
- Does Sudershan Singh accept Medicare?
- Sudershan Singh is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sudershan Singh's NPI active?
- Yes — Sudershan Singh's NPI (1255597571) is active in the NPPES registry as of the last update on 2020-07-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.