Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Dr. Mark Alan Parkhurst, MD

Individual provider Internal Medicine Physician · NPI 1629154539

Dr. Mark Alan Parkhurst, MD practises Internal Medicine in Silver Spring, Maryland. Graduated from University of Maryland School of Medicine in 1979, 47 years ago. Practices with Erickson Health Medical Group of Maryland, PC, a 38-clinician group, works from 4 locations, accepts Medicare assignment and offers telehealth. Licensed in Maryland.

Years since qualifying
47
Trained at
University of Maryland 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

3110 Gracefield Rd
Silver Spring, MD 20904-1820
Phone: (301) 572-8340
Fax: (301) 572-8403
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (3)

  • 7051 Rockledge Dr, Bethesda, MD 20817-1680 — (301) 272-9830
  • 711 Maiden Choice Ln, Catonsville, MD 21228-3632 — (410) 247-5602
  • 8800 Walther Blvd, Parkville, MD 21234-9001 — (410) 882-3240

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence D0024093 (MD)

Record details

NPI number1629154539
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedOctober 31, 2006
Last updated in NPPESAugust 4, 2026
Certification dateAugust 4, 2026

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolUNIVERSITY OF MARYLAND SCHOOL OF MEDICINE
Graduated 1979 (47 years in practice)
Group practice Erickson Health Medical Group Of Maryland, Pc — 38 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations2 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients1,346
Services billed 6,641 a service is one billed item, such as a visit, a test or a procedure
Average patient age86

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Erickson Health Medical Group of Maryland, PC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 38 clinicians in the practice; 12 are shown here.

Other providers in Silver Spring