Gurinder Singh, D.O.
NPI 1063827301 · Internal Medicine Physician · Walnut Creek, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gurinder Singh, D.O. is a Internal Medicine Physician provider in Walnut Creek, CA (NPI 1063827301).
Provider details
- NPI number
- 1063827301
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
12 yrs in NPPES registry
- Profile completeness28% of score
83% of core fields populated
- Practice footprint17% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
162 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 | 115 | $87 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 26 | $130 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 21 | $192 |
Typical Medicare-allowed amounts for these services range $87–$192 (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.
Practice location
Mailing address
Additional practice locations (2)
- 2500 Grant RdMountain View, CA 94040-4302Phone: (650) 940-7000
- 147 N Brent StVentura, CA 93003-2809Phone: (805) 652-5672Fax: (805) 585-3060
Registry dates
- Enumerated
- 2014-06-25
- Last updated
- 2020-04-01
- Certified
- 2020-04-01
Frequently asked questions
- What is Gurinder Singh's NPI number?
- Gurinder Singh's National Provider Identifier (NPI) is 1063827301, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gurinder Singh's specialty?
- Gurinder Singh is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Gurinder Singh located?
- Gurinder Singh's practice location on file with NPPES is 1220 Rossmoor Pkwy, Walnut Creek, CA 94595-2501.
- What is Gurinder Singh's phone number?
- The practice phone number listed in the NPPES registry for Gurinder Singh is (925) 947-3393.
- Does Gurinder Singh accept Medicare?
- Gurinder Singh is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gurinder Singh's NPI active?
- Yes — Gurinder Singh's NPI (1063827301) is active in the NPPES registry as of the last update on 2020-04-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.