NPPES file of Aug 9, 2026

Mark M. Zimmer, OD

Optometrist · Independence, IA

Mark M. Zimmer, OD is an optometrist with a practice address in Independence, Iowa, and NPI 1689670598, issued on Jun 24, 2005. Check the license (Iowa 1967, as entered in NPPES) with the Iowa board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1689670598
Name
Mark M. Zimmer
Credential
OD
Primary taxonomy
Optometrist 152W00000X
License number
1967 IA
Self-reported in NPPES; status is on the state search
Practice location
216 2ND St NE, Independence, IA 50644
Phone
(319) 334-3631
Enumerated
Jun 24, 2005
Record last updated
Jan 23, 2008 (not updated in 18 years: call before relying on the address or phone)
Fax
(319) 334-3631
Medicaid IDs
0419432 IA
0419424 IA
Medicare enrollment
Enrolled (PECOS I20040526001426); may accept Medicare assignment
Medical or professional school
University Of Houston - College Of Optometry, 1991
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Verify Mark M. Zimmer in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Iowa board licenses this profession
    Search for license 1967
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
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2.6 times the Medicare Part D claims of the average optometrist in 2024

727 Medicare Part D claims for 118 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 31% of claims.

  1. Mark Zimmer727
  2. Specialty average277

Most prescribed

  1. Latanoprost393 claims
  2. Brimonidine Tartrate117 claims
  3. Timolol Maleate72 claims
  4. Lumigan48 claims
  5. Restasis34 claims
  6. Acyclovir11 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.

Mark M. Zimmer among 676 optometrist records in Iowa

Mark M. Zimmer, OD is one of 676 optometrist records with a practice address in Iowa. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 82% newer
  • In a Medicare fileYes · 76% of these records are
  • In the CMS Doctors and Clinicians fileYes · 68% of these records are
  • Graduated1991 · median 2006 among the 462 with a school on file
  • Record last updated2008 · 74% 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 Iowa practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

4 optometrist records list a practice address in Independence

They are 4 of the 124 NPPES records with a practice address in Independence, and 676 optometrist records in Iowa.

The 8 optometrist records with the nearest ZIP codes

  1. Bradley Boyle, O.D.Independence, IA 506441255781068
  2. Jenna Henrich, O.D.Independence, IA 506441154734929
  3. Carrie Kearns, O.D.Independence, IA 506441760582308
  4. Stefanie Rohler, ODGrundy Center, IA 506381295846137
  5. Christopher Eiler, O.D.New Hampton, IA 506591043203565
  6. Riley Uglum, ODNew Hampton, IA 506591629083449
  7. Dan Dye, ODEldora, IA 506271164424891
  8. Rachel Mortenson, O.D.Oelwein, IA 506621679544696

Common questions

What is Mark M. Zimmer, OD's NPI number?

Mark M. Zimmer, OD's National Provider Identifier (NPI) is 1689670598, issued on Jun 24, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Mark M. Zimmer, OD located?

The NPPES record lists a practice address at 216 2ND St NE, Independence, IA, 50644. Phone: (319) 334-3631. Providers update this record themselves, so call before visiting.

How can I verify Mark M. Zimmer, OD's license?

NPPES lists Iowa license number 1967, as entered by the provider. Search the Iowa board that licenses this profession; the NPPES record confirms identity only.

How much does Mark M. Zimmer, OD prescribe under Medicare Part D?

In 2024, Mark M. Zimmer, OD had 727 Medicare Part D claims for 118 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.