Alan Steven Marx, DDS
Dentist · Washington, DC
Alan Steven Marx, DDS is a dentist with a practice address in Washington, District of Columbia, and NPI 1265764583, issued on Feb 11, 2010. Check the license (District of Columbia DEN3210, as entered in NPPES) with the District of Columbia board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Alan Steven Marx
- Credential
- DDS
- Primary taxonomy
- Dentist 122300000X
- License number
- DEN3210 DC
Self-reported in NPPES; status is on the state search - Practice location
- 1901 Pennsylvania Ave, NW, Washington, DC 20006
- Phone
- (202) 466-3599
- Enumerated
- Feb 11, 2010
- Record last updated
- Feb 11, 2010 (not updated in 16 years: call before relying on the address or phone)
- Fax
- (202) 857-0608
- Entity
- Type 1 · individual
8 nearest dentist records → All 355 in District of Columbia → Look up another NPI →
Verify Alan Steven Marx in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich District of Columbia board licenses this profession
Search for license DEN3210Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
84% fewer Medicare Part D claims than the average dentist in 2024
14 Medicare Part D claims, against an average of 86 among the 51,021 providers of this specialty who prescribed in Part D.
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Alan Steven Marx among 355 dentist records in District of Columbia
Alan Steven Marx, DDS is one of 355 dentist records with a practice address in District of Columbia. 54% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 51% of them.
- NPI issued2010 · 51% of these records are older, 45% newer
- In a Medicare fileYes · 54% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2010 · 73% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 122300000X and a District of Columbia practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
346 dentist records list a practice address in Washington
They are 346 of the 45,857 NPPES records with a practice address in Washington, and 355 dentist records in District of Columbia.
All 355 in District of Columbia → Every provider in Washington → Dentist nationwide →
The 8 dentist records with the nearest ZIP codes
- Firas Bukai, DMDWashington, DC 200061841338415
- Paul Cohen, D.D.S.Washington, DC 200061730388612
- Joseph Fleming, DDSWashington, DC 200061861698516
- Alan Helig, DDSWashington, DC 200061548346869
- John Hunter, D.D.S.Washington, DC 200061194921338
- Sharman Johnson, DDSWashington, DC 200061366455859
- Luz Lopez Driscoll, DDSWashington, DC 200061194736462
- Jim Louie, DDSWashington, DC 200061265545016
Common questions
What is Alan Steven Marx, DDS's NPI number?
Alan Steven Marx, DDS's National Provider Identifier (NPI) is 1265764583, issued on Feb 11, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Alan Steven Marx, DDS located?
The NPPES record lists a practice address at 1901 Pennsylvania Ave, NW, Washington, DC, 20006. Phone: (202) 466-3599. Providers update this record themselves, so call before visiting.
How can I verify Alan Steven Marx, DDS's license?
NPPES lists District of Columbia license number DEN3210, as entered by the provider. Search the District of Columbia board that licenses this profession; the NPPES record confirms identity only.
How much does Alan Steven Marx, DDS prescribe under Medicare Part D?
In 2024, Alan Steven Marx, DDS had 14 Medicare Part D claims; the average among dentist prescribers was 86. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.