NPPES file of Aug 9, 2026

David Nathan Greenblum, MD

Psychiatry Physician · Kensington, MD

David Nathan Greenblum, MD is a psychiatry physician with a practice address in Kensington, Maryland, and NPI 1467462713, issued on Aug 9, 2006. Check the license (Maryland D0076871, as entered in NPPES) on the Maryland Board of Physicians; 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
1467462713
Name
David Nathan Greenblum
Credential
MD
Primary taxonomy
Psychiatry Physician 2084P0800X
License numbers
D0076871 MD
ME0041857 FL
Self-reported in NPPES; status is on the state search
Practice location
10400 Connecticut Ave, Kensington, MD 20895
Phone
(202) 363-2575
Enumerated
Aug 9, 2006
Record last updated
Feb 5, 2015 (not updated in 11 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20111122000580); accepts Medicare assignment
Medical or professional school
Virginia Commonwealth University, School Of Medicine, 1976
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 10400 Connecticut Ave

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

  1. Richard BrisbaneHearing Instrument Specialist1528422128
  2. Barbara Bryden, PAMedical Physician Assistant1689907107
  3. Victoria Butler, LCSW-CClinical Social Worker1336695758
  4. Lynn Carlsen, LCSW-CClinical Social Worker1346651973
  5. Monica Freedman, LCSW-CClinical Social Worker1487983029
  6. June Fusner, M.D.Pediatrics Physician1659374015

Verify David Nathan Greenblum in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMaryland Board of Physicians
    Search for license D0076871
    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 Maryland 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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2.0 times the Medicare Part D claims of the average psychiatry physician in 2024

2,022 Medicare Part D claims for 153 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims.

  1. David Greenblum2,022
  2. Specialty average1,000

Most prescribed

  1. Quetiapine Fumarate161 claims
  2. Sertraline Hcl118 claims
  3. Buprenorphine-Naloxone112 claims
  4. Clonazepam99 claims
  5. Trazodone Hcl89 claims
  6. Aripiprazole83 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.

Industry payments in 2024: $11,625.06

96 payments; by number, the most common kind was food and beverage; the largest payer was Janssen Pharmaceuticals, Inc. The 13,693 providers of this specialty with any payment received $4,954.93 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. David Greenblum$11,625
  2. Specialty average$4,955

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Centerstone OF Florida IncSarasota, FL

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

David Nathan Greenblum among 1,451 psychiatry physician records in Maryland

David Nathan Greenblum, MD is one of 1,451 psychiatry physician records with a practice address in Maryland. 63% 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 6% of them.

  • NPI issued2006 · 6% of these records are older, 59% newer
  • In a Medicare fileYes · 63% of these records are
  • In the CMS Doctors and Clinicians fileYes · 36% of these records are
  • Graduated1976 · median 2000 among the 525 with a school on file
  • Record last updated2015 · 60% 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 Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

12 psychiatry physician records list a practice address in Kensington

They are 12 of the 686 NPPES records with a practice address in Kensington, and 1,451 psychiatry physician records in Maryland.

The 8 psychiatry physician records with the nearest ZIP codes

  1. Robert Blum, M.D.Kensington, MD 208951528283207
  2. James Cooper, MDKensington, MD 208951639279144
  3. Karl Hawver, M.D.Kensington, MD 208951437152758
  4. Henry Holcomb, M.D.Kensington, MD 208951225110075
  5. Michael Horan, MDKensington, MD 208951215098728
  6. Balbinder Kaur, MDKensington, MD 208951659439578
  7. Lisa McCurry, M.D.Kensington, MD 208951679639173
  8. Barbara Rosenbaum, MDKansington, MD 208951720146624

Common questions

What is David Nathan Greenblum, MD's NPI number?

David Nathan Greenblum, MD's National Provider Identifier (NPI) is 1467462713, issued on Aug 9, 2006. An NPI identifies a provider in billing; it is not a license.

Where is David Nathan Greenblum, MD located?

The NPPES record lists a practice address at 10400 Connecticut Ave, Kensington, MD, 20895. Phone: (202) 363-2575. Providers update this record themselves, so call before visiting.

How can I verify David Nathan Greenblum, MD's license?

NPPES lists Maryland license number D0076871, as entered by the provider. Search the Maryland Board of Physicians at https://www.mbp.state.md.us/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does David Nathan Greenblum, MD prescribe under Medicare Part D?

In 2024, David Nathan Greenblum, MD had 2,022 Medicare Part D claims for 153 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.