Doctor profile · Federal record

Dr. Michael Harrison, MD

Neurological Surgery Physician (CMS: Neurosurgery) · Specialist · N Dartmouth, MA

  • NPI 1508849936
  • Accepts Medicare
  • 40 yrs in practice
  • Licensed in 2 states
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
480 Hawthorn St
N Dartmouth, MA 027473729
(508) 973-9150
fax (508) 973-9155
Mailing address
200 Mill RD, Ste 180
Fairhaven, MA 027195252

Credentials & registration

NPPES · NUCC
NPI registered
November 2005 — 21 yrs on file
Profile last updated
April 22, 2020
Year of graduation
1986 — 40 yrs since
Specialty taxonomy
207T00000X — NUCC code
State licenses (2)
Massachusetts #220233 · Rhode Island #11401
Medicaid
RI #7056880

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1508849936. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
418
Distinct HCPCS
7
Medicare allowed
$84,246
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 195 149 $131
99205 New patient office or other outpatient visit, 60-74 minutes 66 66 $227
99213 Established patient office or other outpatient visit, 20-29 minutes 39 36 $92
99204 New patient office or other outpatient visit, 45-59 minutes 38 38 $168
63048 Partial removal of spine bone with release of spinal cord and/or nerves, each additional segment 36 17 $202
99215 Established patient office or other outpatient visit, 40-54 minutes 24 23 $185
63047 Partial removal of spine bone with release of lower spinal cord and/or nerves, 1 segment 20 20 $1,101

In context: peer comparison

Among 1 peers in N Dartmouth Neurological Surgery Physician, average services per provider: 59. This provider delivers 7.1× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$119
Transactions
4
Manufacturers
2
Payer (manufacturer) Industry Txns Amount
Abbvie INC. 3 $95.22
Boston Scientific Corporation 1 $24.10

By nature of payment

Food and Beverage
$119

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
47
Patients
29
Total drug cost
$426
Drug Type Claims Patients Total cost
Methylprednisolone Generic 33 29 $330
Gabapentin Generic 14 0 $96

Frequently asked questions

Auto-generated from federal data
What is Dr. Michael Harrison's medical specialty?
Dr. Michael Harrison practices Neurological Surgery Physician in N Dartmouth, MA.
Where does Dr. Michael Harrison practice?
Dr. Michael Harrison practices at 480 Hawthorn St, N Dartmouth, MA 027473729. Office phone: 5089739150.
What is Dr. Michael Harrison's NPI?
Dr. Michael Harrison's National Provider Identifier (NPI) is 1508849936, issued by NPPES.
Does Dr. Michael Harrison accept Medicare assignment?
Yes. Dr. Michael Harrison accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Michael Harrison commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); New patient office or other outpatient visit (HCPCS 99205); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.