Mark Potomak
Optometrist · Bellingham, WA
Mark Potomak is an optometrist with a practice address in Bellingham, Washington, and NPI 1407370091, issued on Jul 26, 2017. Check the license (Washington 60763417, as entered in NPPES) with the Washington board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mark Potomak
- Primary taxonomy
- Optometrist 152W00000X
- License number
- 60763417 WA
Self-reported in NPPES; status is on the state search - Practice location
- 2520 James St, Bellingham, WA 98225
- Phone
- (360) 393-4000
- Enumerated
- Jul 26, 2017
- Record last updated
- Jul 26, 2017 (not updated in 9 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20180123002409); accepts Medicare assignment
- Medical or professional school
- New England College Of Optometry, 2017
- Entity
- Type 1 · individual
8 nearest optometrist records → All 1,641 in Washington → Look up another NPI →
Also registered at 2520 James St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kelly Christianson, ODOptometrist1184303257
- Maggie Dong, O.D., M.S.Optometrist1609286707
- Kyle Dosanjh, ODOptometrist1881368041
- Dustin McGill, O.D.Optometrist1255765327
- Kimberly Paris, ODOptometrist1184297301
- Deborah Wu, ODOptometrist1518489053
Verify Mark Potomak in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Washington board licenses this profession
Search for license 60763417Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
85% fewer Medicare Part D claims than the average optometrist in 2024
41 Medicare Part D claims for 18 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 46% of claims.
Most prescribed
- Latanoprost23 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: $22.14
1 payment: food and beverage; the largest payer was Bausch & Lomb Americas Inc. The 34,453 providers of this specialty with any payment received $769.99 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
- Eyeco Optometry PSBellingham, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mark Potomak among 1,641 optometrist records in Washington
Mark Potomak is one of 1,641 optometrist records with a practice address in Washington. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 78% of them.
- NPI issued2017 · 78% of these records are older, 20% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated2017 · median 2010 among the 949 with a school on file
- Record last updated2017 · 67% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 152W00000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Optometrist providers in Washington
There are 1,641 optometrist records in Washington.
All 1,641 in Washington → Every provider in Bellingham → Optometrist nationwide →
The 8 optometrist records with the nearest ZIP codes
- Mark Aginsky, O.D.Bellingham, WA 982251730169285
- Andrew Barber, ODBellingham, WA 982251588735377
- Amy Bearden, O.DBellingham, WA 982251518081264
- Franklin Crissy, O.D.Bellingham, WA 982251932289188
- Tom Defigueiredo, O.D.Bellingham, WA 982251205943867
- Gary Dietz, O.D.Bellingham, WA 982251134276355
- Richard Klinnert, ODBellingham, WA 982251891873832
- Brian Koning, O.D.Bellingham, WA 982251992782023
Common questions
What is Mark Potomak's NPI number?
Mark Potomak's National Provider Identifier (NPI) is 1407370091, issued on Jul 26, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Mark Potomak located?
The NPPES record lists a practice address at 2520 James St, Bellingham, WA, 98225. Phone: (360) 393-4000. Providers update this record themselves, so call before visiting.
How can I verify Mark Potomak's license?
NPPES lists Washington license number 60763417, as entered by the provider. Search the Washington board that licenses this profession; the NPPES record confirms identity only.
How much does Mark Potomak prescribe under Medicare Part D?
In 2024, Mark Potomak had 41 Medicare Part D claims for 18 beneficiaries; the average among optometrist prescribers was 277. 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.