Michael J. Portz, OD
Optometrist · Red Oak, IA
Michael J. Portz, OD is an optometrist with a practice address in Red Oak, Iowa, and NPI 1568463065, issued on Aug 9, 2005. Check the license (Iowa 1753, as entered in NPPES) with the Iowa board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Michael J. Portz
- Credential
- OD
- Primary taxonomy
- Optometrist 152W00000X
- License number
- 1753 IA
Self-reported in NPPES; status is on the state search - Practice location
- 1409 N 2ND St, Red Oak, IA 51566
- Phone
- (712) 623-5551
- Enumerated
- Aug 9, 2005
- Record last updated
- Jun 13, 2008 (not updated in 18 years: call before relying on the address or phone)
- Fax
- (712) 623-4745
- Medicaid ID
- 0078618 IA
- Medicare enrollment
- Enrolled (PECOS I20100810000619); accepts Medicare assignment
- Medical or professional school
- Southern California College Of Optometry, 1979
- Entity
- Type 1 · individual
Also registered at 1409 N 2ND St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jessica Jones, O.D.Optometrist1619353786
- Janet Wade, ODOptometrist1801897178
Verify Michael J. Portz in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Iowa board licenses this profession
Search for license 1753Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
9% more Medicare Part D claims than the average optometrist in 2024
303 Medicare Part D claims for 60 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 26% of claims.
Most prescribed
- Latanoprost181 claims
- Timolol Maleate41 claims
- Alphagan P13 claims
- Fluorometholone11 claims
- Lumigan11 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.
3 optometrist records list a practice address in Red Oak
They are 3 of the 112 NPPES records with a practice address in Red Oak, and 676 optometrist records in Iowa.
All 3 in Red Oak → All 676 in Iowa → Every provider in Red Oak →
Other optometrist records in Iowa
- Ryan Ackerman, O.D.Rock Rapids, IA1770692311
- Katie Adams, ODWest Union, IA1710500251
- Paul Ahern, O.D.Dyersville, IA1104892116
- George Alberhasky, O.D., P.C.Iowa City, IA1013036425
- Troy Albrecht, ODMarion, IA1053392522
- Steven Aljets, O.D.West Des Moines, IA1790745602
- Daniel Alletto, ODCenterville, IA1043668700
- John Altfillisch, ODOttumwa, IA1154420172
- Mark Altfillisch, ODOttumwa, IA1093814014
- Jeffrey Anderson, O.D.Boone, IA1760466098
Common questions
What is Michael J. Portz, OD's NPI number?
Michael J. Portz, OD's National Provider Identifier (NPI) is 1568463065, issued on Aug 9, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Michael J. Portz, OD located?
The NPPES record lists a practice address at 1409 N 2ND St, Red Oak, IA, 51566. Phone: (712) 623-5551. Providers update this record themselves, so call before visiting.
How can I verify Michael J. Portz, OD's license?
NPPES lists Iowa license number 1753, as entered by the provider. Search the Iowa board that licenses this profession; the NPPES record confirms identity only.
How much does Michael J. Portz, OD prescribe under Medicare Part D?
In 2024, Michael J. Portz, OD had 303 Medicare Part D claims for 60 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.