Doctor profile · Federal record

Dr. William Zachow, D.O.

Family Medicine Physician (CMS: Family Practice) · Family Medicine Physician · Family Medicine Physician · Anaconda, MT

  • NPI 1285949560
  • Accepts Medicare
  • 40 yrs in practice
  • Licensed in 3 states
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1102 E Commercial Ave
Anaconda, MT 597112718
(602) 790-4221
Mailing address
Po Box 877
Anaconda, MT 597110877

Credentials & registration

NPPES · NUCC
NPI registered
August 2010 — 16 yrs on file
Profile last updated
September 12, 2014
Year of graduation
1986 — 40 yrs since
Specialty taxonomy
207Q00000X — NUCC code
State licenses (3)
Montana #25906 · California #20A11228 · Arizona #2324
Medicaid
AZ #282947

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1285949560. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$141
Transactions
2
Manufacturers
2
Payer (manufacturer) Industry Txns Amount
Pfizer INC. 1 $125.00
Novo Nordisk INC 1 $15.85

By nature of payment

Food and Beverage
$141

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
1,665
Patients
428
Total drug cost
$22,654
Drug Type Claims Patients Total cost
Lisinopril Generic 225 55 $1,753
Atorvastatin Calcium Generic 176 52 $2,293
Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) Brand 154 25 $3,250
Levothyroxine Sodium Generic 150 42 $2,281
Omeprazole Generic 117 32 $1,669
Amlodipine Besylate Generic 110 32 $919
Metformin Hcl Generic 108 29 $973
Hydrochlorothiazide Generic 100 22 $869
Losartan Potassium Generic 96 26 $1,425
Potassium Chloride Generic 88 23 $2,179

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. William Zachow's medical specialty?
Dr. William Zachow practices Family Medicine Physician in Anaconda, MT.
Where does Dr. William Zachow practice?
Dr. William Zachow practices at 1102 E Commercial Ave, Anaconda, MT 597112718. Office phone: 6027904221.
What is Dr. William Zachow's NPI?
Dr. William Zachow's National Provider Identifier (NPI) is 1285949560, issued by NPPES.
Does Dr. William Zachow accept Medicare assignment?
Yes. Dr. William Zachow accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.