Doctor profile · Federal record

Dr. John Mladucky, PA-C

Gastroenterology Physician (CMS: Physician Assistant) · General Practice Physician · Hospitalist Physician · Lewiston, ME

  • NPI 1033777362
  • Accepts Medicare
  • 7 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 3 locations .

NPPES Updated May 11, 2026
Primary practice
300 Main St
Lewiston, ME 042407027
(207) 795-0111
Additional location
175 Fore River Pkwy
Portland, ME 041022779
(207) 879-3000
Additional location
655 Main St
Saco, ME 040721699
(207) 294-5600
Mailing address
56 Pennell Ave
Portland, ME 041032076

Credentials & registration

NPPES · NUCC
NPI registered
June 2019 — 7 yrs on file
Profile last updated
January 4, 2024
Year of graduation
2019 — 7 yrs since
Specialty taxonomy
207RG0100X — NUCC code
State license (1)
Maine #PA1957

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1033777362. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
214
Distinct HCPCS
4
Medicare allowed
$12,867
HCPCS Description Services Patients Avg allowed
99213 Established patient office or other outpatient visit, 20-29 minutes 142 136 $54
99214 Established patient office or other outpatient visit, 30-39 minutes 36 36 $81
99203 New patient office or other outpatient visit, 30-44 minutes 20 20 $68
99213 Established patient office or other outpatient visit, 20-29 minutes 16 16 $54

In context: peer comparison

Among 3 peers in this city , average services per provider: 32. This provider delivers 6.7× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$531
Transactions
21
Manufacturers
7
Payer (manufacturer) Industry Txns Amount
ABBVIE INC. 9 $232.90
Intercept Pharmaceuticals, Inc. 3 $74.83
Takeda Pharmaceuticals U.S.A., Inc. 3 $69.08
Regeneron Healthcare Solutions, Inc. 2 $52.86
Gilead Sciences, Inc. 2 $45.31
Janssen Biotech, Inc. 1 $31.73
Salix Pharmaceuticals, a division of Bausch Health US, LLC 1 $24.49

By nature of payment

Food and Beverage
$531

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
212
Patients
206
Total drug cost
$2,281
Drug Type Claims Patients Total cost
Prednisone Generic 56 56 $204
Cefdinir Generic 45 44 $733
Cephalexin Generic 37 37 $211
Doxycycline Hyclate Generic 34 34 $418
Amoxicillin-Clavulanate Potass (Amoxicillin/Potassium Clav) Brand 22 22 $229
Albuterol Sulfate Hfa (Albuterol Sulfate) Brand 18 13 $486

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. John Mladucky's medical specialty?
Dr. John Mladucky practices Gastroenterology Physician in Lewiston, ME.
Where does Dr. John Mladucky practice?
Dr. John Mladucky practices at 300 Main St, Lewiston, ME 042407027. Office phone: 2077950111.
What is Dr. John Mladucky's NPI?
Dr. John Mladucky's National Provider Identifier (NPI) is 1033777362, issued by NPPES.
Does Dr. John Mladucky accept Medicare assignment?
Yes. Dr. John Mladucky accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. John Mladucky 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); New patient office or other outpatient visit (HCPCS 99203). Source: CMS Medicare Physician & Other Practitioners file.