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John Reefer, M.D.
NPI 1093743304 · Internal Medicine Physician · Butler, PA
John Reefer, M.D. is a Internal Medicine Physician provider in Butler, PA (NPI 1093743304).
Provider details
- NPI number
- 1093743304
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- MD021615E (PA)
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
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
480 E Jefferson St
2nd Floor, Suite B
Butler, PA 16001-4780
Phone: (727) 285-0870
Fax: (724) 283-3887
Street-level locationGet directions
Mailing address
1022b N Main St
Butler, PA 16001-1954
Registry dates
- Enumerated
- 2006-06-28
- Last updated
- 2011-08-19
Frequently asked questions
- What is John Reefer's NPI number?
- John Reefer's National Provider Identifier (NPI) is 1093743304, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Reefer's specialty?
- John Reefer is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is John Reefer located?
- John Reefer's practice location on file with NPPES is 480 E Jefferson St, Butler, PA 16001-4780.
- What is John Reefer's phone number?
- The practice phone number listed in the NPPES registry for John Reefer is (727) 285-0870.
- Is John Reefer's NPI active?
- Yes — John Reefer's NPI (1093743304) is active in the NPPES registry as of the last update on 2011-08-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.