Troy W. Baker, D.O.
Allergy & Immunology Physician · Mc Lean, VA
Troy W. Baker, D.O. is an allergy & immunology physician with a practice address in Mc Lean, Virginia, and NPI 1023164910, issued on Jan 25, 2007. Check the license (Virginia 0102204034, as entered in NPPES) on the Virginia Department of Health Professions; the Medicare figures below come from public CMS files.
- Name
- Troy W. Baker
- Credential
- D.O.
- Primary taxonomy
- Allergy & Immunology Physician 207K00000X
- License numbers
- 0102204034 VA
H0075043 MD
58.001854 OH
Self-reported in NPPES; status is on the state search - Practice location
- 8008 Westpark Dr, Mc Lean, VA 22102
- Phone
- (703) 287-6559
- Enumerated
- Jan 25, 2007
- Record last updated
- Jun 8, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20150219001592); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest allergy & immunology physician records → All 136 in Virginia → Look up another NPI →
Also registered at 8008 Westpark Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Adebunmi Adeyiga, MDPediatric Radiology Physician1801057062
- Julie Ambrose, M.D.Obstetrics & Gynecology Physician1043263163
- David An, M.D.Internal Medicine Physician1972922862
- Robert Antoniuk, M.D.Emergency Medicine Physician1285849117
Verify Troy W. Baker in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersVirginia Department of Health Professions
Search for license 0102204034Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
75% fewer Medicare Part D claims than the average allergy & immunology physician in 2024
183 Medicare Part D claims for 62 beneficiaries, against an average of 741 among the 2,899 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims.
Most prescribed
- Azelastine Hcl54 claims
- Ipratropium Bromide52 claims
- Epinephrine18 claims
- Famotidine12 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.
Bills Medicare through one group practice
- Kaiser Foundation Health Plan OF The Mid Atlantic States, IncLargo, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Troy W. Baker among 136 allergy & immunology physician records in Virginia
Troy W. Baker, D.O. is one of 136 allergy & immunology physician records with a practice address in Virginia. 87% 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 53% of them.
- NPI issued2007 · 53% of these records are older, 35% newer
- In a Medicare fileYes · 87% of these records are
- In the CMS Doctors and Clinicians fileYes · 71% of these records are
- Graduated2005 · median 2002 among the 97 with a school on file
- Record last updated2021 · 43% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207K00000X and a Virginia practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Allergy & Immunology Physician providers in Virginia
There are 136 allergy & immunology physician records in Virginia.
All 136 in Virginia → Every provider in Mc Lean → Allergy & Immunology Physician nationwide →
The 8 allergy & immunology physician records with the nearest ZIP codes
- Appaji Gondi, M.D.Mc Lean, VA 221021174502132
- Stephen Scranton, M.D.Mc Lean, VA 221021336174671
- Courtney Blair, M.D.Mc Lean, VA 221011730121344
- Karen Robbins, MDMc Lean, VA 221011114184967
- Ronald Deguzman, M.D.Fort Belvoir, VA 220601184614679
- Sarah Spriet, D.O.Fort Belvoir, VA 220601841584893
- Patricia McNally, MDSpringfield, VA 221501033270483
- Oral Alpan, MDSpringfield, VA 221521881788610
Common questions
What is Troy W. Baker, D.O.'s NPI number?
Troy W. Baker, D.O.'s National Provider Identifier (NPI) is 1023164910, issued on Jan 25, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Troy W. Baker, D.O. located?
The NPPES record lists a practice address at 8008 Westpark Dr, Mc Lean, VA, 22102. Phone: (703) 287-6559. Providers update this record themselves, so call before visiting.
How can I verify Troy W. Baker, D.O.'s license?
NPPES lists Virginia license number 0102204034, 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 Troy W. Baker, D.O. prescribe under Medicare Part D?
In 2024, Troy W. Baker, D.O. had 183 Medicare Part D claims for 62 beneficiaries; the average among allergy & immunology physician prescribers was 741. 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.