Mark H. Henderson, MD
Orthopaedic Surgery Physician · Leonardtown, MD
Mark H. Henderson, MD is an orthopaedic surgery physician with a practice address in Leonardtown, Maryland, and NPI 1902883762, issued on Dec 22, 2005. Check the license (Maryland D0040288, as entered in NPPES) on the Maryland Board of Physicians; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Mark H. Henderson
- Credential
- MD
- Primary taxonomy
- Orthopaedic Surgery Physician 207X00000X
- License number
- D0040288 MD
Self-reported in NPPES; status is on the state search - Practice location
- 23000 Moakley St, Leonardtown, MD 20650
- Phone
- (301) 475-5555
- Enumerated
- Dec 22, 2005
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (301) 475-8535
- Entity
- Type 1 · individual
8 nearest orthopaedic surgery physician records → All 457 in Maryland → Look up another NPI →
Also registered at 23000 Moakley St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Daniel Bauk, MDOrthopaedic Surgery Physician1952387730
- Kaitlyn CoucoulesPhysician Assistant1992164669
- Lloyd Cox, MDOrthopaedic Surgery Physician1841276623
- Carol Dehaven, CNMAdvanced Practice Midwife1609079110
- Megan GessfordGerontology Nurse Practitioner1609315993
- Dhimitri Gross, M.D.Family Medicine Physician1750321220
Verify Mark H. Henderson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of Physicians
Search for license D0040288Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Mark H. Henderson among 457 orthopaedic surgery physician records in Maryland
Mark H. Henderson, MD is one of 457 orthopaedic surgery physician records with a practice address in Maryland. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 83% newer
- In a Medicare fileNo · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 65% of these records are
- Record last updated2007 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207X00000X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
6 orthopaedic surgery physician records list a practice address in Leonardtown
They are 6 of the 471 NPPES records with a practice address in Leonardtown, and 457 orthopaedic surgery physician records in Maryland. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 457 in Maryland → Every provider in Leonardtown → Orthopaedic Surgery Physician nationwide →
The 8 orthopaedic surgery physician records with the nearest ZIP codes
- Colleen Balkam, M.D.Leonardtown, MD 206501437685492
- Daniel Bauk, MDLeonardtown, MD 206501952387730
- Lloyd Cox, MDLeonardtown, MD 206501841276623
- Peter Johnston, MDLeonardtown, MD 206501194946095
- Patricia Turner, M.D.Leonardtown, MD 206501598739435
- Gregg Ferrero, M.D.La Plata, MD 206461629033592
- Peter Trent, MDLa Plata, MD 206461871598110
- Dennis Bullock, CERTIFIDE SURGICAL ALusby, MD 206571770050296
Common questions
What is Mark H. Henderson, MD's NPI number?
Mark H. Henderson, MD's National Provider Identifier (NPI) is 1902883762, issued on Dec 22, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Mark H. Henderson, MD located?
The NPPES record lists a practice address at 23000 Moakley St, Leonardtown, MD, 20650. Phone: (301) 475-5555. Providers update this record themselves, so call before visiting.
How can I verify Mark H. Henderson, MD's license?
NPPES lists Maryland license number D0040288, 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.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.