Marsha Y. Blakeslee, M.D., D.O.
Internal Medicine Physician · Severna Park, MD
Marsha Y. Blakeslee, M.D., D.O. is an internal medicine physician with a practice address in Severna Park, Maryland, and NPI 1902925639, issued on Mar 27, 2007. Check the license (Maryland H44184, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- Marsha Y. Blakeslee
- Credential
- M.D., D.O.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- H44184 MD
Self-reported in NPPES; status is on the state search - Practice location
- 479 Jumpers Hole RD, Severna Park, MD 21146
- Phone
- (410) 544-0053
- Enumerated
- Mar 27, 2007
- Record last updated
- Jul 9, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (410) 544-7830
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 3,904 in Maryland → Look up another NPI →
Also registered at 479 Jumpers Hole RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Marsha Y. Blakeslee in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of Physicians
Search for license H44184Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
56% fewer Medicare Part D claims than the average internal medicine physician in 2024
1,382 Medicare Part D claims for 84 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium104 claims
- Hydrochlorothiazide90 claims
- Levothyroxine Sodium83 claims
- Sertraline Hcl47 claims
- Lisinopril43 claims
- Metoprolol Succinate42 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.
Marsha Y. Blakeslee among 3,904 internal medicine physician records in Maryland
Marsha Y. Blakeslee, M.D., D.O. is one of 3,904 internal medicine physician records with a practice address in Maryland. 77% 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 45% of them.
- NPI issued2007 · 45% of these records are older, 44% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileNo · 63% of these records are
- Record last updated2007 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
11 internal medicine physician records list a practice address in Severna Park
They are 11 of the 701 NPPES records with a practice address in Severna Park, and 3,904 internal medicine physician records in Maryland.
All 3,904 in Maryland → Every provider in Severna Park → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Mollie Davis, MDSeverna Park, MD 211461033264270
- Holly Eyler-Yeatman, M.D.Severna Park, MD 211461790834299
- Stephen Katz, MDSeverna Park, MD 211461255486775
- Sandra Leni, MD MSSeverna Park, MD 211461760490270
- Danielle McDevitt, MDSeverna Park, MD 211461336567361
- Sharon Messics, M.D.Severna Park, MD 211461619993474
- Ellegant Pearson, MDSeverna Park, MD 211461437418274
- Eugenia Robertson, M.D.Severna Park, MD 211461962473330
Common questions
What is Marsha Y. Blakeslee, M.D., D.O.'s NPI number?
Marsha Y. Blakeslee, M.D., D.O.'s National Provider Identifier (NPI) is 1902925639, issued on Mar 27, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Marsha Y. Blakeslee, M.D., D.O. located?
The NPPES record lists a practice address at 479 Jumpers Hole RD, Severna Park, MD, 21146. Phone: (410) 544-0053. Providers update this record themselves, so call before visiting.
How can I verify Marsha Y. Blakeslee, M.D., D.O.'s license?
NPPES lists Maryland license number H44184, 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 Marsha Y. Blakeslee, M.D., D.O. prescribe under Medicare Part D?
In 2024, Marsha Y. Blakeslee, M.D., D.O. had 1,382 Medicare Part D claims for 84 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.