Doctor profile · Federal record

Dr. Tammy Cass, NP-BC

Family Nurse Practitioner (CMS: Nurse Practitioner) · Registered Nurse · Warren, MI

  • NPI 1902459159
  • Accepts Medicare
  • 7 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
11900 E 12 Mile RD
Warren, MI 480933400
(586) 582-7100
fax (586) 582-7101

Credentials & registration

NPPES · NUCC
NPI registered
July 2019 — 7 yrs on file
Profile last updated
July 24, 2019
Year of graduation
2019 — 7 yrs since
Specialty taxonomy
363LF0000X — NUCC code
State license (1)
Michigan #4704211290

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1902459159. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$4,113
Transactions
31
Manufacturers
13
Payer (manufacturer) Industry Txns Amount
Biotissue Holdings INC. 8 $1,974.22
DePuy Synthes Sales INC. 7 $622.25
Aroa Biosurgery Incorporated 3 $473.51
Stryker Corporation 2 $273.81
Axogen 1 $154.24
Kerecis Limited 2 $146.88
Smith+Nephew, INC. 2 $143.34
Phathom Pharmaceuticals, INC. 1 $123.50
Atos Medical INC 1 $116.54
Urgo Medical North America, LLC 1 $23.80
Boston Scientific Corporation 1 $21.38
Solventum Corporation 1 $20.49
Cook Medical LLC 1 $18.95

By nature of payment

Food and Beverage
$2,405
Travel and Lodging
$1,708

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
228
Patients
95
Total drug cost
$2,313
Drug Type Claims Patients Total cost
Amoxicillin Generic 67 29 $416
Chlorhexidine Gluconate Generic 66 31 $303
Amoxicillin-Clavulanate Potass (Amoxicillin/Potassium Clav) Brand 42 16 $285
Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) Brand 37 19 $1,151
Gabapentin Generic 16 0 $159

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Tammy Cass's medical specialty?
Dr. Tammy Cass practices Family Nurse Practitioner in Warren, MI.
Where does Dr. Tammy Cass practice?
Dr. Tammy Cass practices at 11900 E 12 Mile RD, Warren, MI 480933400. Office phone: 5865827100.
What is Dr. Tammy Cass's NPI?
Dr. Tammy Cass's National Provider Identifier (NPI) is 1902459159, issued by NPPES.
Does Dr. Tammy Cass accept Medicare assignment?
Yes. Dr. Tammy Cass accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.