NPPES file of Aug 9, 2026

Gary Arnold Klein, MD

Child & Adolescent Psychiatry Physician · Owings Mills, MD

Gary Arnold Klein, MD is a child & adolescent psychiatry physician with a practice address in Owings Mills, Maryland, and NPI 1164647483, issued on Apr 13, 2007. Check the license (Maryland D0012801, 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
1164647483
Name
Gary Arnold Klein
Credential
MD
Primary taxonomy
Child & Adolescent Psychiatry Physician 2084P0804X
License number
D0012801 MD
Self-reported in NPPES; status is on the state search
Practice location
9505 Reisterstown Road, Owings Mills, MD 21117
Phone
(410) 581-9068
Enumerated
Apr 13, 2007
Record last updated
Dec 1, 2014 (not updated in 12 years: call before relying on the address or phone)
Fax
(410) 581-9068
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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Verify Gary Arnold Klein in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMaryland Board of Physicians
    Search for license D0012801
    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

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97% fewer Medicare Part D claims than the average child & adolescent psychiatry physician in 2024

14 Medicare Part D claims, against an average of 504 among the 3,545 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Gary Klein14
  2. Specialty average504

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.

Gary Arnold Klein among 257 child & adolescent psychiatry physician records in Maryland

Gary Arnold Klein, MD is one of 257 child & adolescent psychiatry physician records with a practice address in Maryland. 51% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 26% of them.

  • NPI issued2007 · 26% of these records are older, 44% newer
  • In a Medicare fileYes · 51% of these records are
  • In the CMS Doctors and Clinicians fileNo · 22% of these records are
  • Record last updated2014 · 67% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0804X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Child & Adolescent Psychiatry Physician providers in Maryland

There are 257 child & adolescent psychiatry physician records in Maryland.

The 8 child & adolescent psychiatry physician records with the nearest ZIP codes

  1. Dina Sokal, M.D.Owings Mills, MD 211171063447654
  2. Eric MarshallOdenton, MD 211131689375503
  3. Carol Watkins, M.D.Monkton, MD 211111255489456
  4. Holly Law, M.D.Millersville, MD 211081841514585
  5. Taylor Scott, M.D.Millersville, MD 211081013231976
  6. Cheryl Manning, M.D.Randallstown, MD 211331477794279
  7. Damani Johnson, MDReisterstown, MD 211361073642310
  8. Nida Muzaffar, M.D.Reisterstown, MD 211361912341173

Common questions

What is Gary Arnold Klein, MD's NPI number?

Gary Arnold Klein, MD's National Provider Identifier (NPI) is 1164647483, issued on Apr 13, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Gary Arnold Klein, MD located?

The NPPES record lists a practice address at 9505 Reisterstown Road, Owings Mills, MD, 21117. Phone: (410) 581-9068. Providers update this record themselves, so call before visiting.

How can I verify Gary Arnold Klein, MD's license?

NPPES lists Maryland license number D0012801, 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 Gary Arnold Klein, MD prescribe under Medicare Part D?

In 2024, Gary Arnold Klein, MD had 14 Medicare Part D claims; the average among child & adolescent psychiatry physician prescribers was 504. 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.