Mark Alan Parkhurst, M.D.
Internal Medicine Physician · Silver Spring, MD
Mark Alan Parkhurst, M.D. is an internal medicine physician with a practice address in Silver Spring, Maryland, and NPI 1629154539, issued on Oct 31, 2006. Check the license (Maryland D0024093, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- Mark Alan Parkhurst
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- D0024093 MD
Self-reported in NPPES; status is on the state search - Practice location
- 3110 Gracefield RD, Silver Spring, MD 20904
- Phone
- (301) 572-8340
- Enumerated
- Oct 31, 2006
- Record last updated
- Aug 4, 2026
- Fax
- (301) 572-8403
- Medicaid IDs
- 008203102 MD
156221500 MD - Medicare enrollment
- Enrolled (PECOS I20040224000497); accepts Medicare assignment
- Medical or professional school
- University Of Maryland School Of Medicine, 1979
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 3,904 in Maryland → Look up another NPI →
Also registered at 3110 Gracefield RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Roberto Araujo, DPMPodiatrist1609805571
- Kenderlate Arthus, NP-BCNurse Practitioner1043980550
- Padmaja Bandi, MDInternal Medicine Physician1699971457
- Jennifer BelovichPharmacist1497222673
- Ekta BhutDental Hygienist1508635590
Verify Mark Alan Parkhurst in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of Physicians
Search for license D0024093Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
75% more Medicare Part D claims than the average internal medicine physician in 2024
5,544 Medicare Part D claims for 443 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 73 claims were for opioids.
Most prescribed
- Atorvastatin Calcium327 claims
- Amlodipine Besylate270 claims
- Levothyroxine Sodium261 claims
- Losartan Potassium140 claims
- Tamsulosin Hcl137 claims
- Escitalopram Oxalate136 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.
The MIPS final score for 2023 (Medicare payment program): 78.7 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Erickson Health Medical Group OF Maryland, PCSilver Spring, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mark Alan Parkhurst among 3,904 internal medicine physician records in Maryland
Mark Alan Parkhurst, M.D. 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
- Graduated1979 · median 2003 among the 2,445 with a school on file
- Record last updated2026 · 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).
186 internal medicine physician records list a practice address in Silver Spring
They are 186 of the 6,531 NPPES records with a practice address in Silver Spring, and 3,904 internal medicine physician records in Maryland.
All 3,904 in Maryland → Every provider in Silver Spring → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Eskinder Afework, M.D.Silver Spring, MD 209041912938408
- Rajeev Batra, M.D.Silver Spring, MD 209041003918228
- Lynne Diggs, M.DSilver Spring, MD 209041306835475
- Sita Krishnamoorthy, MDSilver Spring, MD 209041760557607
- Michael Leibowitz, M.D.Silver Spring, MD 209041235119447
- Eugenio Machado, M.D.Silver Spring, MD 209041457383077
- Nnenna Okigbo, MDSilver Spring, MD 209041538167028
- Emmanuel Osei-Boamah, M.D.Silver Spring, MD 209041639282460
Common questions
What is Mark Alan Parkhurst, M.D.'s NPI number?
Mark Alan Parkhurst, M.D.'s National Provider Identifier (NPI) is 1629154539, issued on Oct 31, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mark Alan Parkhurst, M.D. located?
The NPPES record lists a practice address at 3110 Gracefield RD, Silver Spring, MD, 20904. Phone: (301) 572-8340. Providers update this record themselves, so call before visiting.
How can I verify Mark Alan Parkhurst, M.D.'s license?
NPPES lists Maryland license number D0024093, 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 Mark Alan Parkhurst, M.D. prescribe under Medicare Part D?
In 2024, Mark Alan Parkhurst, M.D. had 5,544 Medicare Part D claims for 443 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Mark Alan Parkhurst, M.D.'s MIPS final score?
The 2023 MIPS final score is 78.7 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.