Gregory Gene Zell, O.D.
Corneal and Contact Management Optometrist · Missoula, MT
Gregory Gene Zell, O.D. is a corneal and contact management optometrist with a practice address in Missoula, Montana, and NPI 1679534705, issued on Mar 29, 2006. Check the license (Montana OPT-LIC-474, as entered in NPPES) with the Montana board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Gregory Gene Zell
- Credential
- O.D.
- Primary taxonomy
- Corneal and Contact Management Optometrist 152WC0802X
- License numbers
- OPT-LIC-474 MT
1460 WA
Self-reported in NPPES; status is on the state search - Practice location
- 2510 S Reserve St, Missoula, MT 59801
- Phone
- (406) 721-4646
- Enumerated
- Mar 29, 2006
- Record last updated
- Jul 21, 2022
- Fax
- (406) 721-3859
- Medicaid ID
- 48-3743 MT
- Medicare enrollment
- Enrolled (PECOS I20041104001086); accepts Medicare assignment
- Medical or professional school
- Southern California College Of Optometry, 1981
- Entity
- Type 1 · individual
4 nearest corneal and contact management optometrist records → All 5 in Montana → Look up another NPI →
Also registered at 2510 S Reserve St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Brett CurriePharmacist1427450980
- Gretchen DierkenPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1245632744
- Thomas Ferguson, O.D.Optometrist1043259104
- Rebecca Jackson, ODOptometrist1205819638
Verify Gregory Gene Zell in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Montana board licenses this profession
Search for license OPT-LIC-474Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
94% fewer Medicare Part D claims than the average corneal and contact management optometrist in 2024
14 Medicare Part D claims, against an average of 225 among the 585 providers of this specialty who prescribed in Part D. Brand-name drugs were 79% of claims.
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $100.00
1 payment: food and beverage; the largest payer was Bausch & Lomb Americas Inc. The 610 providers of this specialty with any payment received $1,035.17 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Shoptikal LLCMissoula, MT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Corneal and Contact Management Optometrist providers in Montana
There are 5 corneal and contact management optometrist records in Montana.
All 5 in Montana → Every provider in Missoula → Corneal and Contact Management Optometrist nationwide →
The 4 corneal and contact management optometrist records with the nearest ZIP codes
- Harvey Bonner, O.D.Billings, MT 591021346359155
- Michelle Brown, BSC, BED, OD, FAAOBillings, MT 591021013132307
- Douglas McBride, O.D.Billings, MT 591021720141583
- Kevin McBride, O.D.Billings, MT 591021922161538
Common questions
What is Gregory Gene Zell, O.D.'s NPI number?
Gregory Gene Zell, O.D.'s National Provider Identifier (NPI) is 1679534705, issued on Mar 29, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Gregory Gene Zell, O.D. located?
The NPPES record lists a practice address at 2510 S Reserve St, Missoula, MT, 59801. Phone: (406) 721-4646. Providers update this record themselves, so call before visiting.
How can I verify Gregory Gene Zell, O.D.'s license?
NPPES lists Montana license number OPT-LIC-474, as entered by the provider. Search the Montana board that licenses this profession; the NPPES record confirms identity only.
How much does Gregory Gene Zell, O.D. prescribe under Medicare Part D?
In 2024, Gregory Gene Zell, O.D. had 14 Medicare Part D claims; the average among corneal and contact management optometrist prescribers was 225. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.