Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Dr. Holly Ryerson Dahlman, MD

Individual provider Internal Medicine Physician · NPI 1962464552

Dr. Holly Ryerson Dahlman, MD is an Internal Medicine in Lutherville, Maryland. Graduated from Johns Hopkins University School of Medicine in 1996, 30 years ago. Practices with Green Spring Internal Medicine LLC, a 3-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Maryland.

Years since qualifying
30
Trained at
Johns Hopkins University School of Medicine
Licensed in
MD
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

2360 W Joppa Rd Green Spring Internal Medicine Llc - Ste 210
Lutherville, MD 21093-4624
Phone: (410) 583-2890
Fax: (410) 583-2891
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence D0054653 (MD)

Record details

NPI number1962464552
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 6, 2006
Last updated in NPPESApril 15, 2008

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyINTERNAL MEDICINE
Medical schoolJOHNS HOPKINS UNIVERSITY SCHOOL OF MEDICINE
Graduated 1996 (30 years in practice)
Group practice Green Spring Internal Medicine Llc — 3 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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