Michael Clearfield, D.O.
NPI 1689638561 · Internal Medicine Physician · Vallejo, CA
Enrolled with Medicare as Order and Referring Only - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michael Clearfield, D.O. is a Internal Medicine Physician provider in Vallejo, CA (NPI 1689638561).
Provider details
- NPI number
- 1689638561
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- No
- License
- F5869 (TX)
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 tenure38% of score
20 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
- 2006-04-17
- Last updated
- 2013-03-26
Frequently asked questions
- What is Michael Clearfield's NPI number?
- Michael Clearfield's National Provider Identifier (NPI) is 1689638561, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Clearfield's specialty?
- Michael Clearfield is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Michael Clearfield located?
- Michael Clearfield's practice location on file with NPPES is 365 Tuolumne St, Vallejo, CA 94590-5700.
- What is Michael Clearfield's phone number?
- The practice phone number listed in the NPPES registry for Michael Clearfield is (707) 784-2001.
- Does Michael Clearfield accept Medicare?
- Michael Clearfield is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Michael Clearfield's NPI active?
- Yes — Michael Clearfield's NPI (1689638561) is active in the NPPES registry as of the last update on 2013-03-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.