What is Stefan John's NPI number?

Stefan John's National Provider Identifier (NPI) is 1659201978, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Stefan John's specialty?

Stefan John is listed in the NPPES registry with a primary specialty of Military Health Care Provider (Other Service Providers).

Where is Stefan John located?

Stefan John's practice location on file with NPPES is 8901 Wisconsin Ave, Bethesda, MD 20889-0004.

What is Stefan John's phone number?

The practice phone number listed in the NPPES registry for Stefan John is (301) 295-4000.

Is Stefan John's NPI active?

Yes — Stefan John's NPI (1659201978) is active in the NPPES registry as of the last update on 2026-06-01.

IndividualActive

Stefan John, MD

NPI 1659201978 · Military Health Care Provider · Bethesda, MD

Stefan John, MD is a Military Health Care Provider provider in Bethesda, MD (NPI 1659201978).

Provider details

NPI number: 1659201978
Entity type: Individual
Primary specialty: Military Health Care ProviderOther Service Providers
Credential: MD
Sex: Male
Sole proprietor: No
License: 1659201978 (MD)

Specialties & taxonomies

Military Health Care ProviderPrimary171000000XLicense 1659201978 (MD)
Other Service Providers

Profile Score

Established profile(53/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
Under 1 yr in 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

8901 Wisconsin Ave

Bethesda, MD 20889-0004

Phone: (301) 295-4000

Approximate (ZIP-level) locationGet directions

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Mailing address