Erika R. Larson, MD
Internal Medicine Physician · Rosedale, MD
Erika R. Larson, MD is an internal medicine physician with a practice address in Rosedale, Maryland, and NPI 1730169442, issued on Jan 19, 2006. Check the license (Maryland D0053393, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- Erika R. Larson
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- D0053393 MD
Self-reported in NPPES; status is on the state search - Practice location
- 9520 Philadelphia RD, Rosedale, MD 21237
- Phone
- (410) 558-4700
- Enumerated
- Jan 19, 2006
- Record last updated
- Jul 22, 2024
- Medicare enrollment
- Enrolled (PECOS I20100907000887); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 3,904 in Maryland → Look up another NPI →
Also registered at 9520 Philadelphia RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Anisha Hampton, FNP-C; PMHNP-BCPsychiatric/Mental Health Nurse Practitioner1053799635
- Ann Kim, PHARMDAmbulatory Care Pharmacist1659063097
- Jennifer Perry, FNP-BCFamily Nurse Practitioner1639050107
Verify Erika R. Larson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of Physicians
Search for license D0053393Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
70% fewer Medicare Part D claims than the average internal medicine physician in 2024
942 Medicare Part D claims for 146 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Amlodipine Besylate68 claims
- Lisinopril54 claims
- Atorvastatin Calcium45 claims
- Levothyroxine Sodium44 claims
- Rosuvastatin Calcium44 claims
- Losartan Potassium32 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
- Baltimore Medical System, Inc.Baltimore, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Erika R. Larson among 3,904 internal medicine physician records in Maryland
Erika R. Larson, MD 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 2006, is newer than 9% of them.
- NPI issued2006 · 9% of these records are older, 55% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated1994 · median 2003 among the 2,445 with a school on file
- Record last updated2024 · 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).
7 internal medicine physician records list a practice address in Rosedale
They are 7 of the 617 NPPES records with a practice address in Rosedale, and 3,904 internal medicine physician records in Maryland.
All 3,904 in Maryland → Every provider in Rosedale → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Kirmanj Ahmed, M.D.Baltimore, MD 212371174591184
- Sheila Alongi, M.D.Baltimore, MD 212371437147618
- Mary Carroll, M.D.Rosedale, MD 212371730153636
- Howard Goldman, M.D.Rosedale, MD 212371528068251
- Debra Hutjens, M.D.Baltimore, MD 212371720057649
- Sheldon Milner, M.D.Baltimore, MD 212371508859257
- Chienyenwa Nwachinemere, M.D.Rosedale, MD 212371316905227
- Josephine Owusu-Sakyi, M.D.Baltimore, MD 212371083683981
Common questions
What is Erika R. Larson, MD's NPI number?
Erika R. Larson, MD's National Provider Identifier (NPI) is 1730169442, issued on Jan 19, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Erika R. Larson, MD located?
The NPPES record lists a practice address at 9520 Philadelphia RD, Rosedale, MD, 21237. Phone: (410) 558-4700. Providers update this record themselves, so call before visiting.
How can I verify Erika R. Larson, MD's license?
NPPES lists Maryland license number D0053393, 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 Erika R. Larson, MD prescribe under Medicare Part D?
In 2024, Erika R. Larson, MD had 942 Medicare Part D claims for 146 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.