Doctor profile · Federal record

Dr. Isabel Arrillaga-Romany, MD, PHD

Neurology Physician (CMS: Neurology) · Internal Medicine Physician · Boston, MA

  • NPI 1972762326
  • Accepts Medicare
  • 18 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
Massachusetts General Hospital, 55 Fruit Street
Boston, MA 02114
(617) 726-2862

Credentials & registration

NPPES · NUCC
NPI registered
June 2008 — 18 yrs on file
Profile last updated
July 11, 2013
Year of graduation
2008 — 18 yrs since
Specialty taxonomy
2084N0400X — NUCC code
State licenses (2)
Massachusetts #236376 · Massachusetts #L-236376

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1972762326. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
342
Distinct HCPCS
5
Medicare allowed
$47,660
HCPCS Description Services Patients Avg allowed
99215 Established patient office or other outpatient visit, 40-54 minutes 209 91 $153
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 51 26 $84
99214 Established patient office or other outpatient visit, 30-39 minutes 31 30 $104
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 31 30 $184
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 20 15 $126

In context: peer comparison

Among 134 peers in this city , average services per provider: 234. This provider delivers 1.5× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
59
Patients
11
Total drug cost
$18,602
Drug Type Claims Patients Total cost
Gleostine (Lomustine) Brand 19 0 $17,928
Levetiracetam Generic 15 0 $292
Dexamethasone Generic 13 0 $261
Ondansetron Hcl Generic 12 11 $120

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Isabel Arrillaga-Romany's medical specialty?
Dr. Isabel Arrillaga-Romany practices Neurology Physician in Boston, MA.
Where does Dr. Isabel Arrillaga-Romany practice?
Dr. Isabel Arrillaga-Romany practices at Massachusetts General Hospital, Boston, MA 02114. Office phone: 6177262862.
What is Dr. Isabel Arrillaga-Romany's NPI?
Dr. Isabel Arrillaga-Romany's National Provider Identifier (NPI) is 1972762326, issued by NPPES.
Does Dr. Isabel Arrillaga-Romany accept Medicare assignment?
Yes. Dr. Isabel Arrillaga-Romany accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Isabel Arrillaga-Romany commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99215); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.