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Fred Parham, M.D.
NPI 1558330563 · Internal Medicine Physician · Vacaville, CA
Fred Parham, M.D. is a Internal Medicine Physician provider in Vacaville, CA (NPI 1558330563).
Provider details
- NPI number
- 1558330563
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- G43938 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(91/100 index)
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
1000 Nut Tree Rd
Vacaville, CA 95687
Phone: (707) 447-3600
Fax: (707) 446-6515
Street-level locationGet directions
Mailing address
426 Corte Barcelona
Vacaville, CA 95688-2112
Registry dates
- Enumerated
- 2006-03-14
- Last updated
- 2007-07-08
Frequently asked questions
- What is Fred Parham's NPI number?
- Fred Parham's National Provider Identifier (NPI) is 1558330563, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Fred Parham's specialty?
- Fred Parham is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Fred Parham located?
- Fred Parham's practice location on file with NPPES is 1000 Nut Tree Rd, Vacaville, CA 95687.
- What is Fred Parham's phone number?
- The practice phone number listed in the NPPES registry for Fred Parham is (707) 447-3600.
- Is Fred Parham's NPI active?
- Yes — Fred Parham's NPI (1558330563) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.