Seema Sangwan MD Inc a California Professional Corporation
NPI 1306499280 · Internal Medicine Physician · San Mateo, CA
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Seema Sangwan MD Inc a California Professional Corporation is a Internal Medicine Physician organization in San Mateo, CA (NPI 1306499280).
Provider details
- NPI number
- 1306499280
- Entity type
- Organization
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Seema Sangwan, Owner(650) 799-2957
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
6 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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.
Practice location
Mailing address
Other names (DBA / former)
- Other name
- Self
- Other name
- Self
Additional practice locations (1)
- 877 W Fremont Ave Ste N1Sunnyvale, CA 94087-2332Phone: (408) 900-8077Fax: (844) 965-9436
Registry dates
- Enumerated
- 2019-07-19
- Last updated
- 2021-03-22
- Certified
- 2021-03-22
Frequently asked questions
- What is Seema Sangwan MD Inc a California Professional Corporation's NPI number?
- Seema Sangwan MD Inc a California Professional Corporation's National Provider Identifier (NPI) is 1306499280, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Seema Sangwan MD Inc a California Professional Corporation?
- Seema Sangwan MD Inc a California Professional Corporation is classified in the NPPES registry as Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Seema Sangwan MD Inc a California Professional Corporation located?
- Seema Sangwan MD Inc a California Professional Corporation's practice location on file with NPPES is 101 S San Mateo Dr Ste 102, San Mateo, CA 94401-3840.
- What is Seema Sangwan MD Inc a California Professional Corporation's phone number?
- The practice phone number listed in the NPPES registry for Seema Sangwan MD Inc a California Professional Corporation is (650) 435-8211.
- Does Seema Sangwan MD Inc a California Professional Corporation accept Medicare?
- Seema Sangwan MD Inc a California Professional Corporation is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Seema Sangwan MD Inc a California Professional Corporation?
- The authorized official listed on Seema Sangwan MD Inc a California Professional Corporation's NPPES record is Seema Sangwan, Owner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Seema Sangwan MD Inc a California Professional Corporation's NPI active?
- Yes — Seema Sangwan MD Inc a California Professional Corporation's NPI (1306499280) is active in the NPPES registry as of the last update on 2021-03-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.