POTOMAC ARTHRITIS & RHEUMATISM MADALENE K. GREENE, MD, P.C.
POTOMAC ARTHRITIS & RHEUMATISM MADALENE K. GREENE, MD, P.C. is an organization registered with the National Plan and Provider Enumeration System (NPPES) under NPI 1922207075, based in Bethesda, MD. It is classified under Rheumatology Physician.
Getting there
The practice address on file is 10401 OLD GEORGETOWN RD SUITE #305, Bethesda, MD 20814. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| D38031 | MD | Rheumatology Physician primary |
This provider holds licence D38031 issued in MD. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
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 Rheumatology covers
An internist who treats diseases of joints, muscle, bones and tendons. This specialist diagnoses and treats arthritis, back pain, muscle strains, common athletic injuries and "collagen" diseases. NUCC Health Care Provider Taxonomy, code 207RR0500X
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 | 1922207075 valid check digit |
|---|---|
| Entity type | Organization (NPI-2) |
| Enumeration date | Jul 17, 2007 |
| Last updated | Jan 9, 2008 |
| Status | Active |
| Practice address |
10401 OLD GEORGETOWN RD SUITE #305 Bethesda, MD 20814 (301) 530-9490 Fax (301) 530-9493 |
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 | 9 | 2 | 2 | 2 | 0 | 7 | 0 | 7 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 9 | 4 | 2 | 4 | 0 | 5 | 0 | 5 |
Sum = 55 · next multiple of 10 = 60 · check digit = 5 · actual last digit = 5
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.