Doctor profile · Federal record

Dr. Nasser Hajar, M.D.

Internal Medicine Physician (CMS: Gastroenterology) · Hospitalist Physician · Student in an Organized Health Care Education/Training Program · Sylvania, OH

  • NPI 1689820631
  • Accepts Medicare
  • 21 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
5700 Monroe St Unit 103
Sylvania, OH 435602771
(419) 843-7996
fax (419) 841-7704

Credentials & registration

NPPES · NUCC
NPI registered
August 2008 — 18 yrs on file
Profile last updated
November 3, 2023
Year of graduation
2005 — 21 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
New York #004026
Medicaid
OH #0107571

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1689820631. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
638
Distinct HCPCS
10
Medicare allowed
$82,442
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 102 77 $123
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 92 90 $62
99204 New patient office or other outpatient visit, 45-59 minutes 50 50 $162
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 41 38 $90
45380 Biopsy of large bowel using a flexible endoscope 32 32 $92
45380 Biopsy of large bowel using a flexible endoscope 31 31 $82
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare 30 30 $205
99215 Established patient office or other outpatient visit, 40-54 minutes 28 25 $168
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare 25 25 $204
99221 Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes 25 25 $82

In context: peer comparison

Among 15 peers in this city , average services per provider: 87. This provider delivers 7.3× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$546
Transactions
27
Manufacturers
11
Payer (manufacturer) Industry Txns Amount
ABBVIE INC. 14 $243.03
Takeda Pharmaceuticals U.S.A., Inc. 3 $100.23
Salix Pharmaceuticals, a division of Bausch Health US, LLC 2 $48.49
Intercept Pharmaceuticals, Inc. 1 $26.06
Gilead Sciences, Inc. 1 $21.25
Ardelyx, Inc. 1 $20.92
Merck Sharp & Dohme LLC 1 $20.38
Lilly USA, LLC 1 $18.67
GENZYME CORPORATION 1 $16.23
Boston Scientific Corporation 1 $15.39
Celgene Corporation 1 $14.85

By nature of payment

Food and Beverage
$546

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
966
Patients
417
Total drug cost
$119,680
Drug Type Claims Patients Total cost
Pantoprazole Sodium Generic 413 129 $7,448
Omeprazole Generic 174 54 $3,631
Gavilyte-G (Peg3350/Sod Sulf,bicarb,cl/Kcl) Brand 81 81 $1,259
Peg 3350-Electrolyte (Sodium Chloride/Nahco3/Kcl/Peg) Brand 66 65 $1,594
Sod Sulf-Potass Sulf-Mag Sulf (Sodium, Potassium,mag Sulfates) Brand 43 43 $3,429
Creon (Lipase/Protease/Amylase) Brand 36 0 $64,421
Dicyclomine Hcl Generic 31 11 $387
Linzess (Linaclotide) Brand 26 0 $22,029
Ciprofloxacin Hcl Generic 20 18 $77
Peg-3350 And Electrolytes (Peg3350/Sod Sulf,bicarb,cl/Kcl) Brand 16 16 $282

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Nasser Hajar's medical specialty?
Dr. Nasser Hajar practices Internal Medicine Physician in Sylvania, OH.
Where does Dr. Nasser Hajar practice?
Dr. Nasser Hajar practices at 5700 Monroe St Unit 103, Sylvania, OH 435602771. Office phone: 4198437996.
What is Dr. Nasser Hajar's NPI?
Dr. Nasser Hajar's National Provider Identifier (NPI) is 1689820631, issued by NPPES.
Does Dr. Nasser Hajar accept Medicare assignment?
Yes. Dr. Nasser Hajar accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Nasser Hajar commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (HCPCS 43239); New patient office or other outpatient visit (HCPCS 99204). Source: CMS Medicare Physician & Other Practitioners file.