JOHNS HOPKINS UNIVERSITY
JOHNS HOPKINS UNIVERSITY is an organization registered with the National Plan and Provider Enumeration System (NPPES) under NPI 1003403551, based in Bethesda, MD. It is classified under Endocrinology, Diabetes & Metabolism Physician.
Getting there
Here is what surrounds this office in Bethesda, based on OpenStreetMap data collected Sep 7, 2026. Parking is available about 901 ft away at Liberty Garage. The nearest transit stop is 0.23 mi away, served by Jones Bridge Rd at Glenbrook Pky.
Getting here and what is nearby
Parking Arrowhead Garage 423 ft ~2 min
8935 Brown Road, Bethesda 20889
Convenience Mini Mart 627 ft ~3 min
Mo-Fr 07:00-19:00; Su 10:00-18:00; Sa 10:00-19:00
Gas station Mini Mart 635 ft ~3 min
Restaurant Wendy's 648 ft ~3 min
8901 Wisconsin Avenue, Bethesda 20814
Mo-Fr 06:00-20:00; Sa-Su 08:00-19:00
Parking Walter Reed National MIlitary Medical Center 678 ft ~3 min
4780 Enterprise Drive, Bethesda 20889
Transit Rockville Pike & Wood Road 897 ft ~4 min
Parking Liberty Garage 901 ft ~4 min
8965 Brown Road, Bethesda 20889
Transit Rockville Pike & South Drive 0.21 mi ~5 min
Transit Jones Bridge Rd at Glenbrook Pky 0.23 mi ~5 min
Hotel Navy Lodge Bethesda 0.26 mi ~6 min
8855 Stokes Road, Bethesda 20889
Hotel Navy Gateway Inn & Suites 0.43 mi ~9 min
4520 Taylor Road, Bethesda 20889
Distances are straight‑line estimates — walking routes may be longer. Hours and phone numbers can change; call ahead to confirm.
Credentials and Medicare
NPPES does not list a state licence number for this record. That is not unusual — organizations and some provider types are not required to file one. Verify current licensure with the relevant state board before care.
This NPI does not appear in the PECOS Medicare enrolment file. Providers who do not bill Medicare — or who bill only through a group's enrolment — will not appear here. It is not a sign of any problem with the registration.
What Endocrinology, Diabetes & Metabolism covers
An internist who concentrates on disorders of the internal (endocrine) glands such as the thyroid and adrenal glands. This specialist also deals with disorders such as diabetes, metabolic and nutritional disorders, obesity, pituitary diseases and menstrual and sexual problems. NUCC Health Care Provider Taxonomy, code 207RE0101X
The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.
Full NPPES record
An NPI-2 identifies an organization — a clinic, hospital, group practice, laboratory, or supplier. Individual clinicians working there hold their own NPI-1 numbers separately, so a bill may reference both.
| NPI | 1003403551 valid check digit |
|---|---|
| Entity type | Organization (NPI-2) |
| Enumeration date | Dec 30, 2020 |
| Last updated | Jun 11, 2025 |
| Status | Active |
| Practice address |
8901 ROCKVILLE PIKE Bethesda, MD 20889 (301) 400-1382 |
| Mailing address |
6201 GREENLEIGH AVE FL 2 Middle River, MD 21220 |
| Other names |
Admin Location Former Legal Name |
Number check
How the check works, step by step
Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.
| Digit | 8 | 0 | 8 | 4 | 0 | 1 | 0 | 0 | 3 | 4 | 0 | 3 | 5 | 5 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 8 | 0 | 6 | 5 | 1 |
Sum = 49 · next multiple of 10 = 50 · check digit = 1 · actual last digit = 1
A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.