John Downs, M.D.
NPI 1598966442 · Internal Medicine Physician · Bethesda, MD
Enrolled with Medicare as Practitioner - Medical Toxicology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Downs, M.D. is a Internal Medicine Physician provider in Bethesda, MD (NPI 1598966442).
Provider details
- NPI number
- 1598966442
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- D0089715 (MD)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
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
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
Mailing address
Registry dates
- Enumerated
- 2007-05-29
- Last updated
- 2023-03-07
- Certified
- 2020-06-22
Frequently asked questions
- What is John Downs's NPI number?
- John Downs's National Provider Identifier (NPI) is 1598966442, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Downs's specialty?
- John Downs is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is John Downs located?
- John Downs's practice location on file with NPPES is 8901 Wisconsin Ave Occupational Medicine Service, Bethesda, MD 20889-0001.
- What is John Downs's phone number?
- The practice phone number listed in the NPPES registry for John Downs is (301) 295-0786.
- Does John Downs accept Medicare?
- John Downs is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Downs's NPI active?
- Yes — John Downs's NPI (1598966442) is active in the NPPES registry as of the last update on 2023-03-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.