NPPES file of Aug 9, 2026

Catherine May, M.D.

Psychiatry Physician · Washington, DC

Catherine May, M.D. is a psychiatry physician with a practice address in Washington, District of Columbia, and NPI 1851454565, issued on Dec 18, 2006. Check the license (District of Columbia MD 17637, as entered in NPPES) on the District of Columbia Board of Medicine; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1851454565
Name
Catherine May
Credential
M.D.
Primary taxonomy
Psychiatry Physician 2084P0800X
License number
MD 17637 DC
Self-reported in NPPES; status is on the state search
Practice location
2000 P St NW, Washington, DC 20036
Phone
(202) 466-3455
Enumerated
Dec 18, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(202) 965-3301
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 2000 P St NW

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Ronit Atlan, LCSWClinical Social Worker1386905339
  2. Mina Barimany, MFT, LPCProfessional Counselor1275992976
  3. Lauren Brown, PHDClinical Psychologist1780981217
  4. Keith Erickson, PH.D.Clinical Psychologist1275628273
  5. Jessica Fleming, LGPCMental Health Counselor1073168472
  6. Brigitte Ladisch, PHDPsychologist1346461167

Verify Catherine May in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersDistrict of Columbia Board of Medicine
    Search for license MD 17637
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the District of Columbia license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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86% fewer Medicare Part D claims than the average psychiatry physician in 2024

138 Medicare Part D claims for 18 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims.

  1. Catherine May138
  2. Specialty average1,000

Most prescribed

  1. Lamotrigine15 claims
  2. Clonazepam13 claims
  3. Sertraline Hcl13 claims
  4. Gabapentin12 claims
  5. Escitalopram Oxalate11 claims

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.

Catherine May among 474 psychiatry physician records in District of Columbia

Catherine May, M.D. is one of 474 psychiatry physician records with a practice address in District of Columbia. 58% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 5% of them.

  • NPI issued2006 · 5% of these records are older, 75% newer
  • In a Medicare fileYes · 58% of these records are
  • In the CMS Doctors and Clinicians fileNo · 26% of these records are
  • Record last updated2007 · 62% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X 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).

467 psychiatry physician records list a practice address in Washington

They are 467 of the 45,857 NPPES records with a practice address in Washington, and 474 psychiatry physician records in District of Columbia.

The 8 psychiatry physician records with the nearest ZIP codes

  1. Louis Beckman, M.D.Washington, DC 200361972802106
  2. John Beyer, MDWashington, DC 200361831392315
  3. Lisa Catapano, M.D.Washington, DC 200361184872301
  4. Brian Doyle, MDWashington, DC 200361356443840
  5. Deborah Feldheim, M.D.Washington, DC 200361861530081
  6. Bruce Hill, M.D.Washington, DC 200361285745166
  7. Jerrold O'Rourke, M.D.Washington, DC 200361003812892
  8. Stephen Quint, M.D.Washington, DC 200361093861031

Common questions

What is Catherine May, M.D.'s NPI number?

Catherine May, M.D.'s National Provider Identifier (NPI) is 1851454565, issued on Dec 18, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Catherine May, M.D. located?

The NPPES record lists a practice address at 2000 P St NW, Washington, DC, 20036. Phone: (202) 466-3455. Providers update this record themselves, so call before visiting.

How can I verify Catherine May, M.D.'s license?

NPPES lists District of Columbia license number MD 17637, as entered by the provider. Search the District of Columbia Board of Medicine at https://dchealth.dc.gov/bomed. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Catherine May, M.D. prescribe under Medicare Part D?

In 2024, Catherine May, M.D. had 138 Medicare Part D claims for 18 beneficiaries; the average among psychiatry physician prescribers was 1,000. 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.