Marc Stephen Feldman, PHD
Clinical Psychologist · Washington, DC
Marc Stephen Feldman, PHD is a clinical psychologist with a practice address in Washington, District of Columbia, and NPI 1639660913, issued on May 23, 2018. Check the license (District of Columbia 78900001074, as entered in NPPES) with the District of Columbia board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Marc Stephen Feldman
- Credential
- PHD
- Primary taxonomy
- Clinical Psychologist 103TC0700X
- License number
- 78900001074 DC
Self-reported in NPPES; status is on the state search - Practice location
- 1054 31St St NW Ste 500, Washington, DC 20007
- Phone
- (202) 338-0880
- Enumerated
- May 23, 2018
- Record last updated
- May 23, 2018 (not updated in 8 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest clinical psychologist records → All 564 in District of Columbia → Look up another NPI →
Also registered at 1054 31St St NW Ste 500
A shared address usually means a shared clinic or building; it does not show who employs whom.
- David Dayton, PHDClinical Psychologist1780101758
- Charles Missar, PHDClinical Psychologist1770393662
Verify Marc Stephen Feldman 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 78900001074Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Marc Stephen Feldman among 564 clinical psychologist records in District of Columbia
Marc Stephen Feldman, PHD is one of 564 clinical psychologist records with a practice address in District of Columbia. 4% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2018, is newer than 76% of them.
- NPI issued2018 · 76% of these records are older, 22% newer
- In a Medicare fileNo · 4% of these records are
- In the CMS Doctors and Clinicians fileNo · 8% of these records are
- Record last updated2018 · 74% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 103TC0700X 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).
558 clinical psychologist records list a practice address in Washington
They are 558 of the 45,857 NPPES records with a practice address in Washington, and 564 clinical psychologist records in District of Columbia. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 564 in District of Columbia → Every provider in Washington → Clinical Psychologist nationwide →
The 8 clinical psychologist records with the nearest ZIP codes
- Denisha Carter, M.S., PSYDWashington, DC 200071598917478
- Brian Cross, PH.D.Washington, DC 200071659519742
- Mary Dutton, PH.D.Washington, DC 200071710260740
- Burt Grenell, PH.D.Washington, DC 200071144452244
- Barbara Jones, PH.D.Washington, DC 200071669693685
- Jennifer Joyner, PSY.D.Washington, DC 200071043457492
- Stacey Kaltman, PHDWashington, DC 200071811059207
- Janice KrupnickWashington, DC 200071164421327
Common questions
What is Marc Stephen Feldman, PHD's NPI number?
Marc Stephen Feldman, PHD's National Provider Identifier (NPI) is 1639660913, issued on May 23, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Marc Stephen Feldman, PHD located?
The NPPES record lists a practice address at 1054 31St St NW Ste 500, Washington, DC, 20007. Phone: (202) 338-0880. Providers update this record themselves, so call before visiting.
How can I verify Marc Stephen Feldman, PHD's license?
NPPES lists District of Columbia license number 78900001074, as entered by the provider. Search the District of Columbia board that licenses this profession; the NPPES record confirms identity 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. 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.