John Schruefer, MD
NPI 1003875808 · Internal Medicine Physician · Rockville, MD
John Schruefer, MD is a Internal Medicine Physician provider in Rockville, MD (NPI 1003875808).
Provider details
- NPI number
- 1003875808
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- D0065238 (MD)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
- 2006-03-21
- Last updated
- 2018-07-09
Frequently asked questions
- What is John Schruefer's NPI number?
- John Schruefer's National Provider Identifier (NPI) is 1003875808, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Schruefer's specialty?
- John Schruefer is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is John Schruefer located?
- John Schruefer's practice location on file with NPPES is 9420 Key West Ave, Rockville, MD 20850-3334.
- What is John Schruefer's phone number?
- The practice phone number listed in the NPPES registry for John Schruefer is (630) 725-2730.
- Is John Schruefer's NPI active?
- Yes — John Schruefer's NPI (1003875808) is active in the NPPES registry as of the last update on 2018-07-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.