Doctor profile · Federal record

Dr. Joseph Mashni, FNP

Nurse Practitioner · Nurse Practitioner · Watervliet, MI

  • NPI 1265424527
  • Accepts Medicare
  • 27 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
460 Medical Park Dr Ste 200
Watervliet, MI 490989225
(269) 463-3600
fax (269) 463-8206
Additional location
310 S Front St
Dowagiac, MI 490471740
(269) 782-8696

Credentials & registration

NPPES · NUCC
NPI registered
August 2005 — 21 yrs on file
Profile last updated
August 15, 2023
Year of graduation
1999 — 27 yrs since
Specialty taxonomy
363L00000X — NUCC code
State licenses (2)
Michigan #4704141572 · Michigan #47-04-141572
Medicaid (5)
MI #104208690 · MI #104208705 · MI #140294150 · MI #104208723 · MI #104208714

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1265424527. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$19
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Pfizer INC. 1 $19.17

By nature of payment

Food and Beverage
$19

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
504
Patients
459
Total drug cost
$4,927
Drug Type Claims Patients Total cost
Prednisone Generic 115 113 $400
Cephalexin Generic 73 68 $688
Amoxicillin Generic 53 53 $317
Amoxicillin-Clavulanate Potass (Amoxicillin/Potassium Clav) Brand 47 46 $624
Doxycycline Hyclate Generic 44 43 $642
Albuterol Sulfate Hfa (Albuterol Sulfate) Brand 35 26 $1,141
Methylprednisolone Generic 33 33 $340
Azithromycin Generic 32 31 $174
Triamcinolone Acetonide Generic 24 21 $142
Fluconazole Generic 14 14 $92

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Joseph Mashni's medical specialty?
Dr. Joseph Mashni practices Nurse Practitioner in Watervliet, MI.
Where does Dr. Joseph Mashni practice?
Dr. Joseph Mashni practices at 460 Medical Park Dr Ste 200, Watervliet, MI 490989225. Office phone: 2694633600.
What is Dr. Joseph Mashni's NPI?
Dr. Joseph Mashni's National Provider Identifier (NPI) is 1265424527, issued by NPPES.
Does Dr. Joseph Mashni accept Medicare assignment?
Yes. Dr. Joseph Mashni accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.