Tom Cheng, MD
NPI 1215015102 · Hospitalist Physician · Vallejo, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Tom Cheng, MD is a Hospitalist Physician provider in Vallejo, CA (NPI 1215015102).
Provider details
- NPI number
- 1215015102
- Entity type
- Individual
- Primary specialty
- Hospitalist PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A74037 (CA)
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
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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
Registry dates
- Enumerated
- 2006-11-01
- Last updated
- 2021-12-03
Frequently asked questions
- What is Tom Cheng's NPI number?
- Tom Cheng's National Provider Identifier (NPI) is 1215015102, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Tom Cheng's specialty?
- Tom Cheng is listed in the NPPES registry with a primary specialty of Hospitalist Physician (Allopathic & Osteopathic Physicians).
- Where is Tom Cheng located?
- Tom Cheng's practice location on file with NPPES is 975 Sereno Dr, Vallejo, CA 94589-2441.
- What is Tom Cheng's phone number?
- The practice phone number listed in the NPPES registry for Tom Cheng is (707) 651-1000.
- Does Tom Cheng accept Medicare?
- Tom Cheng is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Tom Cheng's NPI active?
- Yes — Tom Cheng's NPI (1215015102) is active in the NPPES registry as of the last update on 2021-12-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.