Doctor profile · Federal record
Dr. Mark Johnson, MD PHD
Neurological Surgery Physician (CMS: Neurosurgery) · Worcester, MA
- NPI 1578501797
- Accepts Medicare
- 31 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
55 Lake Ave N
Worcester, MA 016550002
(508) 856-2963 - Mailing address
-
Po Box 415348
Boston, MA 022415348
Credentials & registration
- NPI registered
- June 2006 — 20 yrs on file
- Profile last updated
- October 26, 2020
- Year of graduation
- 1995 — 31 yrs since
- Specialty taxonomy
- 207T00000X — NUCC code
- State license (1)
- Massachusetts #217384
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1578501797. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
131
Distinct HCPCS
4
Medicare allowed
$11,876
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 54 | 47 | $67 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 47 | 36 | $98 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 19 | 17 | $144 | |
99203 |
New patient office or other outpatient visit, 30-44 minutes | 11 | 11 | $83 |
In context: peer comparison
Among 6 peers in Worcester Neurological Surgery Physician, average services per provider: 34. This provider delivers 3.9× the peer median.Open Payments
Industry payments received
All-time total
$347
Transactions
6
Manufacturers
3
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Integra LifeSciences Corporation | 1 | $177.71 | |
| DePuy Synthes Sales INC. | 4 | $149.21 | |
| Csl Behring | 1 | $20.00 |
By nature of payment
Hospital affiliations
Frequently asked questions
What is Dr. Mark Johnson's medical specialty?
Dr. Mark Johnson practices Neurological Surgery Physician in Worcester, MA.
Where does Dr. Mark Johnson practice?
Dr. Mark Johnson practices at 55 Lake Ave N, Worcester, MA 016550002. Office phone: 5088562963.
What is Dr. Mark Johnson's NPI?
Dr. Mark Johnson's National Provider Identifier (NPI) is 1578501797, issued by NPPES.
Does Dr. Mark Johnson accept Medicare assignment?
Yes. Dr. Mark Johnson accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mark Johnson commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99215). Source: CMS Medicare Physician & Other Practitioners file.