Charles Thomas Olsen, MD
Psychiatry Physician · Potomac, MD
Charles Thomas Olsen, MD is a psychiatry physician with a practice address in Potomac, Maryland, and NPI 1730304312, issued on Apr 17, 2007. Check the license (Maryland D0002950, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- Charles Thomas Olsen
- Credential
- MD
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- D0002950 MD
Self-reported in NPPES; status is on the state search - Practice location
- 10013 Sorrel Ave, Potomac, MD 20854
- Phone
- (301) 299-0401
- Enumerated
- Apr 17, 2007
- Record last updated
- Jul 10, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (301) 299-0401
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 1,451 in Maryland → Look up another NPI →
Verify Charles Thomas Olsen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of Physicians
Search for license D0002950Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
97% fewer Medicare Part D claims than the average psychiatry physician in 2024
34 Medicare Part D claims, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D.
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.
Charles Thomas Olsen among 1,451 psychiatry physician records in Maryland
Charles Thomas Olsen, 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 2007, is newer than 41% of them.
- NPI issued2007 · 41% of these records are older, 38% newer
- In a Medicare fileYes · 63% of these records are
- In the CMS Doctors and Clinicians fileNo · 36% of these records are
- Record last updated2016 · 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 Potomac
They are 12 of the 497 NPPES records with a practice address in Potomac, and 1,451 psychiatry physician records in Maryland.
All 1,451 in Maryland → Every provider in Potomac → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Alan Brody, M.D.Potomac, MD 208541316195464
- Jay Bronder, M.D.Rockville, MD 208541023404613
- Susan Felzer, PSY.D.Potomac, MD 208541386798387
- Sander Genser, M.D.Potomac, MD 208541417001462
- David George, M.D.Potomac, MD 208541548391246
- Lee Haller, M.D.Potomac, MD 208541326345828
- Marta Hopkinson, M.D.Rockville, MD 208541245358019
- Russell Horwitz, MD, PHDPotomac, MD 208541477744597
Common questions
What is Charles Thomas Olsen, MD's NPI number?
Charles Thomas Olsen, MD's National Provider Identifier (NPI) is 1730304312, issued on Apr 17, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Charles Thomas Olsen, MD located?
The NPPES record lists a practice address at 10013 Sorrel Ave, Potomac, MD, 20854. Phone: (301) 299-0401. Providers update this record themselves, so call before visiting.
How can I verify Charles Thomas Olsen, MD's license?
NPPES lists Maryland license number D0002950, 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 Charles Thomas Olsen, MD prescribe under Medicare Part D?
In 2024, Charles Thomas Olsen, MD had 34 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.
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.