Holly Ryerson Dahlman, M.D.
Internal Medicine Physician · Lutherville, MD
Holly Ryerson Dahlman, M.D. is an internal medicine physician with a practice address in Lutherville, Maryland, and NPI 1962464552, issued on Apr 6, 2006. Check the license (Maryland D0054653, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- Holly Ryerson Dahlman
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- D0054653 MD
Self-reported in NPPES; status is on the state search - Practice location
- 2360 W Joppa RD, Lutherville, MD 21093
- Phone
- (410) 583-2890
- Enumerated
- Apr 6, 2006
- Record last updated
- Apr 15, 2008 (not updated in 18 years: call before relying on the address or phone)
- Fax
- (410) 583-2891
- Medicare enrollment
- Enrolled (PECOS I20060907000129); accepts Medicare assignment
- Medical or professional school
- Johns Hopkins University School Of Medicine, 1996
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
Also registered at 2360 W Joppa RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Donna Dennis, RDRegistered Dietitian1992010771
- Bonnie Epstein, M.D.Dermatology Physician1508855248
Verify Holly Ryerson Dahlman in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of Physicians
Search for license D0054653Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
53% more Medicare Part D claims than the average internal medicine physician in 2024
4,850 Medicare Part D claims for 425 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 36 claims were for opioids.
Most prescribed
- Atorvastatin Calcium542 claims
- Rosuvastatin Calcium391 claims
- Amlodipine Besylate296 claims
- Lisinopril196 claims
- Metoprolol Succinate145 claims
- Valsartan134 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
- Green Spring Internal Medicine LLCLutherville, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
65 internal medicine physician records list a practice address in Lutherville
They are 65 of the 952 NPPES records with a practice address in Lutherville, and 3,904 internal medicine physician records in Maryland.
All 65 in Lutherville → All 3,904 in Maryland → Every provider in Lutherville →
Other internal medicine physician records in Maryland
- Eduardo Abarca Rojas, M.D.Parkville, MD1538447628
- Rasheed Abassi, M.D.Clinton, MD1376608620
- Ghulam Abbas, MDFrederick, MD1477658045
- Shamima Abbas, MDKensington, MD1750445896
- Nourelhuda Abbas Hamed, MDSilver Spring, MD1699339473
- Arsalan Abbasi, MDWestminster, MD1942762604
- Hamdi AbdeenGaithersburg, MD1245972413
- Mukemil Abdella, M.D.Glenn Dale, MD1871603381
- Suzan Abdo, MDClarksville, MD1588631824
- Madeeha Abdul GhaffarElkton, MD1194276063
Common questions
What is Holly Ryerson Dahlman, M.D.'s NPI number?
Holly Ryerson Dahlman, M.D.'s National Provider Identifier (NPI) is 1962464552, issued on Apr 6, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Holly Ryerson Dahlman, M.D. located?
The NPPES record lists a practice address at 2360 W Joppa RD, Lutherville, MD, 21093. Phone: (410) 583-2890. Providers update this record themselves, so call before visiting.
How can I verify Holly Ryerson Dahlman, M.D.'s license?
NPPES lists Maryland license number D0054653, 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 Holly Ryerson Dahlman, M.D. prescribe under Medicare Part D?
In 2024, Holly Ryerson Dahlman, M.D. had 4,850 Medicare Part D claims for 425 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.