Doctor profile · Federal record

Dr. Gregory Zell, O.D.

Corneal and Contact Management Optometrist (CMS: Optometry) · Corneal and Contact Management Optometrist · Missoula, MT

  • NPI 1679534705
  • Accepts Medicare
  • 45 yrs in practice
  • Licensed in 2 states
  • Male
  • Solo practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
2510 S Reserve St
Missoula, MT 598017546
(406) 721-4646
fax (406) 721-3859
Additional location
1150 E Idaho St, Vision Center
Kalispell, MT 599013227
(406) 756-8400
fax (406) 756-8405
Mailing address
Po Box 4071
Missoula, MT 598064071

Credentials & registration

NPPES · NUCC
NPI registered
March 2006 — 20 yrs on file
Profile last updated
July 21, 2022
Year of graduation
1981 — 45 yrs since
Specialty taxonomy
152WC0802X — NUCC code
State licenses (2)
Montana #OPT-LIC-474 · Washington #1460
Medicaid
MT #48-3743

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1679534705. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
94
Distinct HCPCS
2
Medicare allowed
$7,731
HCPCS Description Services Patients Avg allowed
92014 Established patient complete exam of visual system 61 61 $82
92004 New patient complete exam of visual system 33 33 $82

In context: peer comparison

Among 1 peers in Missoula Corneal and Contact Management Optometrist, average services per provider: 47. This provider delivers 2.0× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$100
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Bausch & Lomb Americas INC. 1 $100.00

By nature of payment

Food and Beverage
$100

Frequently asked questions

Auto-generated from federal data
What is Dr. Gregory Zell's medical specialty?
Dr. Gregory Zell practices Corneal and Contact Management Optometrist in Missoula, MT.
Where does Dr. Gregory Zell practice?
Dr. Gregory Zell practices at 2510 S Reserve St, Missoula, MT 598017546. Office phone: 4067214646.
What is Dr. Gregory Zell's NPI?
Dr. Gregory Zell's National Provider Identifier (NPI) is 1679534705, issued by NPPES.
Does Dr. Gregory Zell accept Medicare assignment?
Yes. Dr. Gregory Zell accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Gregory Zell commonly perform?
Top Medicare-reported procedures in 2023: Established patient complete exam of visual system (HCPCS 92014); New patient complete exam of visual system (HCPCS 92004). Source: CMS Medicare Physician & Other Practitioners file.