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John Madigan, MD
NPI 1164527461 · Internal Medicine Physician · Sacramento, CA
John Madigan, MD is a Internal Medicine Physician provider in Sacramento, CA (NPI 1164527461).
Provider details
- NPI number
- 1164527461
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A19274 (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
1201 Alhambra Blvd
#220
Sacramento, CA 95816-5238
Phone: (916) 731-7965
Fax: (916) 731-7936
Street-level locationGet directions
Mailing address
Po Box 255228
Sacramento, CA 95865-5228
Registry dates
- Enumerated
- 2006-09-13
- Last updated
- 2007-07-08
Frequently asked questions
- What is John Madigan's NPI number?
- John Madigan's National Provider Identifier (NPI) is 1164527461, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Madigan's specialty?
- John Madigan is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is John Madigan located?
- John Madigan's practice location on file with NPPES is 1201 Alhambra Blvd, Sacramento, CA 95816-5238.
- What is John Madigan's phone number?
- The practice phone number listed in the NPPES registry for John Madigan is (916) 731-7965.
- Is John Madigan's NPI active?
- Yes — John Madigan's NPI (1164527461) 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.