Mark D. Johnson, MD PHD
Neurological Surgery Physician · Worcester, MA
Mark D. Johnson, MD PHD is a neurological surgery physician with a practice address in Worcester, Massachusetts, and NPI 1578501797, issued on Jun 2, 2006. Check the license (Massachusetts 217384, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Mark D. Johnson
- Credential
- MD PHD
- Primary taxonomy
- Neurological Surgery Physician 207T00000X
- License number
- 217384 MA
Self-reported in NPPES; status is on the state search - Practice location
- 55 Lake Ave N, Worcester, MA 01655
- Phone
- (508) 856-2963
- Enumerated
- Jun 2, 2006
- Record last updated
- Oct 26, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20110405000263); accepts Medicare assignment
- Medical or professional school
- Harvard Medical School, 1995
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest neurological surgery physician records → All 236 in Massachusetts → Look up another NPI →
Also registered at 55 Lake Ave N
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Zainab AbbasDermatology Physician1609028000
- Mary-Alice Abbott, MDClinical Genetics (M.D.) Physician1982799417
Verify Mark D. Johnson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 217384Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $346.92
6 payments; by number, the most common kind was food and beverage; the largest payer was Integra LifeSciences Corporation. The 5,377 providers of this specialty with any payment received $14,925.58 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Umass Memorial Medical Group IncWorcester, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mark D. Johnson among 236 neurological surgery physician records in Massachusetts
Mark D. Johnson, MD PHD is one of 236 neurological surgery physician records with a practice address in Massachusetts. 74% 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 12% of them.
- NPI issued2006 · 12% of these records are older, 58% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 65% of these records are
- Graduated1995 · median 2001 among the 154 with a school on file
- Record last updated2020 · 69% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207T00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Neurological Surgery Physician providers in Massachusetts
There are 236 neurological surgery physician records in Massachusetts.
All 236 in Massachusetts → Every provider in Worcester → Neurological Surgery Physician nationwide →
The 8 neurological surgery physician records with the nearest ZIP codes
- Peter Amenta, M.D.Worcester, MA 016551447460985
- Oguz Cataltepe, M.D.Worcester, MA 016551174505598
- Celina Crisman, M.D.Worcester, MA 016551255699963
- Robin Davidson, M.D.Worcester, MA 016551851582951
- Dominic Gessler, MDWorcester, MA 016551295398220
- Stephen Gutting, M.D.Worcester, MA 016551063465615
- Farid Hamzei-SichaniWorcester, MA 016551437393741
- Richard Moser, M.D.Worcester, MA 016551225086457
Common questions
What is Mark D. Johnson, MD PHD's NPI number?
Mark D. Johnson, MD PHD's National Provider Identifier (NPI) is 1578501797, issued on Jun 2, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mark D. Johnson, MD PHD located?
The NPPES record lists a practice address at 55 Lake Ave N, Worcester, MA, 01655. Phone: (508) 856-2963. Providers update this record themselves, so call before visiting.
How can I verify Mark D. Johnson, MD PHD's license?
NPPES lists Massachusetts license number 217384, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. 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. 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.