Doctor profile · Federal record

Dr. Frank Mongillo, MD

Internal Medicine Physician (CMS: Internal Medicine) · New Haven, CT

  • NPI 1811917289
  • Accepts Medicare
  • 32 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
26 Elm Street
New Haven, CT 065102006
(203) 776-6845
fax (203) 777-9020

Credentials & registration

NPPES · NUCC
NPI registered
July 2006 — 20 yrs on file
Profile last updated
July 8, 2007
Year of graduation
1994 — 32 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
Connecticut #035706

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1811917289. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
254
Distinct HCPCS
4
Medicare allowed
$25,573
HCPCS Description Services Patients Avg allowed
99213 Established patient office or other outpatient visit, 20-29 minutes 181 62 $95
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit 47 47 $136
99214 Established patient office or other outpatient visit, 30-39 minutes 14 13 $135
93000 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 12 12 $15

In context: peer comparison

Among 66 peers in this city , average services per provider: 73. This provider delivers 3.5× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$1,021
Transactions
34
Manufacturers
11
Payer (manufacturer) Industry Txns Amount
Indivior Inc. 17 $192.66
Braeburn Inc. 4 $162.75
AstraZeneca Pharmaceuticals LP 2 $139.07
Merck Sharp & Dohme LLC 1 $125.00
Lexicon Pharmaceuticals, Inc. 1 $124.79
Lilly USA, LLC 1 $120.98
E.R. Squibb & Sons, L.L.C. 3 $59.62
ABBVIE INC. 2 $48.74
Novo Nordisk Inc 1 $17.98
Otsuka America Pharmaceutical, Inc. 1 $15.92
PFIZER INC. 1 $13.18

By nature of payment

Food and Beverage
$1,021

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
2,203
Patients
555
Total drug cost
$60,046
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 343 90 $4,472
Lisinopril Generic 212 53 $1,779
Metformin Hcl Generic 196 49 $1,522
Alprazolam Generic 168 26 $1,243
Amlodipine Besylate Generic 161 41 $1,571
Levothyroxine Sodium Generic 152 34 $2,415
Buprenorphine-Naloxone (Buprenorphine Hcl/Naloxone Hcl) Brand 137 15 $35,553
Hydrochlorothiazide Generic 133 31 $322
Metoprolol Succinate Generic 113 24 $2,000
Tamsulosin Hcl Generic 113 30 $1,756

Frequently asked questions

Auto-generated from federal data
What is Dr. Frank Mongillo's medical specialty?
Dr. Frank Mongillo practices Internal Medicine Physician in New Haven, CT.
Where does Dr. Frank Mongillo practice?
Dr. Frank Mongillo practices at 26 Elm Street, New Haven, CT 065102006. Office phone: 2037766845.
What is Dr. Frank Mongillo's NPI?
Dr. Frank Mongillo's National Provider Identifier (NPI) is 1811917289, issued by NPPES.
Does Dr. Frank Mongillo accept Medicare assignment?
Yes. Dr. Frank Mongillo accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Frank Mongillo commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (HCPCS G0439); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.