Marcus Antonio Walton, M.D.
Critical Care Medicine (Internal Medicine) Physician · Portsmouth, VA
Marcus Antonio Walton, M.D. is a critical care medicine (internal medicine) physician with a practice address in Portsmouth, Virginia, and NPI 1295962603, issued on Jun 12, 2009. Check the license on the Virginia Department of Health Professions; the Medicare figures below come from public CMS files.
- Name
- Marcus Antonio Walton
- Credential
- M.D.
- Primary taxonomy
- Critical Care Medicine (Internal Medicine) Physician 207RC0200X
- License number
- ME141572 FL
Self-reported in NPPES; status is on the state search - Practice location
- 620 Jhn Paul Jns Cir, Portsmouth, VA 23708
- Phone
- (757) 953-3149
- Enumerated
- Jun 12, 2009
- Record last updated
- Jan 4, 2022
- Medicare enrollment
- Enrolled (PECOS I20200427002002); accepts Medicare assignment
- Medical or professional school
- Morehouse School Of Medicine, 2009
- Entity
- Type 1 · individual
8 nearest critical care medicine (internal medicine) physician records → All 176 in Virginia → Look up another NPI →
Also registered at 620 Jhn Paul Jns Cir
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Blanca AyersPediatric Registered Nurse1316210180
- Vincent Ciarametaro, RPHPharmacist1144294869
- Meateran Funwi, DNPPsychiatric/Mental Health Nurse Practitioner1407522451
- Richard Gendron, RPHPharmacist1558331322
- Christopher Goljan, M.D.Surgery Physician1326591348
- Eileen Kokosinski, MPTPhysical Therapist1659345312
Verify Marcus Antonio Walton in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersVirginia Department of Health ProfessionsCheck 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: $25.64
1 payment: food and beverage; the largest payer was Chiesi USA, Inc. The 2,708 providers of this specialty with any payment received $2,958.68 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 3 group practices
- Ams Southeast LLCMoultrie, GA
- Intensive Care Consortium IncAugusta, GA
- Piedmont Anesthesia LLCStockbridge, GA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Marcus Antonio Walton among 176 critical care medicine (internal medicine) physician records in Virginia
Marcus Antonio Walton, M.D. is one of 176 critical care medicine (internal medicine) physician records with a practice address in Virginia. 90% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 52% of them.
- NPI issued2009 · 52% of these records are older, 42% newer
- In a Medicare fileYes · 90% of these records are
- In the CMS Doctors and Clinicians fileYes · 85% of these records are
- Graduated2009 · median 2007 among the 149 with a school on file
- Record last updated2022 · 30% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0200X and a Virginia practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Critical Care Medicine (Internal Medicine) Physician providers in Virginia
There are 176 critical care medicine (internal medicine) physician records in Virginia.
All 176 in Virginia → Every provider in Portsmouth → Critical Care Medicine (Internal Medicine) Physician nationwide →
The 8 critical care medicine (internal medicine) physician records with the nearest ZIP codes
- Jeannette Collins, D.O.Portsmouth, VA 237081861817918
- Nathan Cutler, M.D.Portsmouth, VA 237081588959167
- Ian Grasso, MDPortsmouth, VA 237081588083067
- Michael Kavanaugh, M.D.Portsmouth, VA 237081487786869
- Almotasembellah Aljaafareh, MDHampton, VA 236661376890731
- Gretchen Brayman, MDHampton, VA 236661538587761
- Naga Chigurupati, M.D.Hampton, VA 236661043298805
- Mit Patel, M.D.Hampton, VA 236661245659648
Common questions
What is Marcus Antonio Walton, M.D.'s NPI number?
Marcus Antonio Walton, M.D.'s National Provider Identifier (NPI) is 1295962603, issued on Jun 12, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Marcus Antonio Walton, M.D. located?
The NPPES record lists a practice address at 620 Jhn Paul Jns Cir, Portsmouth, VA, 23708. Phone: (757) 953-3149. Providers update this record themselves, so call before visiting.
How can I verify Marcus Antonio Walton, M.D.'s license?
Search the Virginia Department of Health Professions at https://dhp.virginiainteractive.org/lookup/index. 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.