NPPES file of Aug 9, 2026

Thaddeus Markham Garland, M.D.

Psychiatry Physician · Reston, VA

Thaddeus Markham Garland, M.D. is a psychiatry physician with a practice address in Reston, Virginia, and NPI 1336447697, issued on Mar 9, 2011. Check the license (Virginia 0101256114, as entered in NPPES) on the Virginia Department of Health Professions; 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
1336447697
Name
Thaddeus Markham Garland
Credential
M.D.
Primary taxonomy
Psychiatry Physician 2084P0800X
License number
0101256114 VA
Self-reported in NPPES; status is on the state search
Practice location
12020 Sunrise Valley Dr Ste 100, Reston, VA 20191
Phone
(703) 476-2263
Enumerated
Mar 9, 2011
Record last updated
Mar 20, 2023
Fax
(620) 506-4003
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 12020 Sunrise Valley Dr Ste 100

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

  1. Alexandra BrezinskyProfessional Counselor1245815976
  2. Jeanjoo ChaMental Health Counselor1053167510
  3. Anju Corbishdale, PH.D.Clinical Psychologist1144065475
  4. Ana CruzMental Health Counselor1720890379
  5. Katherine Epps, LCSWClinical Social Worker1235057209
  6. Regina Foster, LPCProfessional Counselor1831987593

Verify Thaddeus Markham Garland in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersVirginia Department of Health Professions
    Search for license 0101256114    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 Virginia license search

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

140 Medicare Part D claims, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims.

  1. Thaddeus Garland140
  2. Specialty average1,000

Most prescribed

  1. Dextroamphetamine-Amphet Er19 claims
  2. Clozapine13 claims
  3. Ziprasidone Hcl12 claims
  4. Dextroamphetamine-Amphetamine11 claims
  5. Diazepam11 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.

24 psychiatry physician records list a practice address in Reston

They are 24 of the 1,676 NPPES records with a practice address in Reston, and 1,395 psychiatry physician records in Virginia.

All 24 in Reston → All 1,395 in Virginia → Every provider in Reston →

Other psychiatry physician records in Virginia

  1. Muhammad Abbas, M.DHopewell, VA1871944462
  2. Ahmed Sherif Abdel Meguid, MDFalls Church, VA1700956307
  3. Maha Abdel-Kader, MDManassas, VA1730172065
  4. Ayman Abdelbakey, M.D.Ashburn, VA1790880722
  5. Maria Abeleda, MDWytheville, VA1871554907
  6. Alaa AbouelnasrCharlottesville, VA1952074817
  7. Zviadi Aburjania, MDMc Lean, VA1811457245
  8. Letonia Adams, M.D.Christiansburg, VA1053730358
  9. Eunice Adeola, MSN, PMHNP-BCTysons Corner, VA1962351817
  10. Sarah AderholdtSalem, VA1841992401

Common questions

What is Thaddeus Markham Garland, M.D.'s NPI number?

Thaddeus Markham Garland, M.D.'s National Provider Identifier (NPI) is 1336447697, issued on Mar 9, 2011. An NPI identifies a provider in billing; it is not a license.

Where is Thaddeus Markham Garland, M.D. located?

The NPPES record lists a practice address at 12020 Sunrise Valley Dr Ste 100, Reston, VA, 20191. Phone: (703) 476-2263. Providers update this record themselves, so call before visiting.

How can I verify Thaddeus Markham Garland, M.D.'s license?

NPPES lists Virginia license number 0101256114, as entered by the provider. Search the Virginia Department of Health Professions at https://dhp.virginiainteractive.org/lookup/index. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Thaddeus Markham Garland, M.D. prescribe under Medicare Part D?

In 2024, Thaddeus Markham Garland, M.D. had 140 Medicare Part D claims; 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.