Doctor profile · Federal record
Dr. Marcus Walton, M.D.
Critical Care Medicine (Internal Medicine) Physician (CMS: Anesthesiology) · Military Health Care Provider · Portsmouth, VA
- NPI 1295962603
- Accepts Medicare
- 17 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
Operates at 3 locations .
- Primary practice
-
620 Jhn Paul Jns Cir
Portsmouth, VA 237082111
(757) 953-3149 - Additional location
-
1000 Johnson Fy RD Ne
Atlanta, GA 303421606
(404) 851-8000
fax (404) 303-3759 - Additional location
-
10131 Forest Hill Blvd
Wellington, FL 334146156
(561) 766-1300
fax (561) 693-0539 - Mailing address
-
100 Parkview Ave
Portsmouth, VA 237041932
Credentials & registration
- NPI registered
- June 2009 — 17 yrs on file
- Profile last updated
- January 4, 2022
- Year of graduation
- 2009 — 17 yrs since
- Specialty taxonomy
- 207RC0200X — NUCC code
- State license (1)
- Florida #ME141572
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1295962603. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
454
Distinct HCPCS
9
Medicare allowed
$66,167
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 181 | 103 | $118 | |
99291 |
Critical care, first 30-74 minutes | 141 | 77 | $213 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 32 | 31 | $130 | |
00731 |
Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope | 27 | 27 | $71 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 17 | 17 | $172 | |
00811 |
Anesthesia for other procedure on large bowel using an endoscope | 15 | 15 | $63 | |
00840 |
Anesthesia for other procedure on lower abdomen | 15 | 15 | $140 | |
36620 |
Insertion of artery tube for blood sampling or infusion through skin | 15 | 15 | $45 | |
00790 |
Anesthesia for other procedure on upper abdomen | 11 | 11 | $179 |
In context: peer comparison
Among 3 peers in this city , average services per provider: 56. This provider delivers 8.1× the peer median.Open Payments
Industry payments received
All-time total
$26
Transactions
1
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Chiesi USA, Inc. | 1 | $25.64 |
By nature of payment
Hospital affiliations
Frequently asked questions
What is Dr. Marcus Walton's medical specialty?
Dr. Marcus Walton practices Critical Care Medicine (Internal Medicine) Physician in Portsmouth, VA.
Where does Dr. Marcus Walton practice?
Dr. Marcus Walton practices at 620 Jhn Paul Jns Cir, Portsmouth, VA 237082111. Office phone: 7579533149.
What is Dr. Marcus Walton's NPI?
Dr. Marcus Walton's National Provider Identifier (NPI) is 1295962603, issued by NPPES.
Does Dr. Marcus Walton accept Medicare assignment?
Yes. Dr. Marcus Walton accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Marcus Walton commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Critical care (HCPCS 99291); Initial hospital care with straightforward or low-level medical decision making (HCPCS 99222). Source: CMS Medicare Physician & Other Practitioners file.