NPPES file of Aug 9, 2026

Cathy Hollenbach, O.D.

Optometrist · Chandler, AZ

Cathy Hollenbach, O.D. is an optometrist with a practice address in Chandler, Arizona, and NPI 1629065016, issued on Sep 30, 2005. Check the license (Arizona 972, as entered in NPPES) with the Arizona 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
1629065016
Name
Cathy Hollenbach
Credential
O.D.
Primary taxonomy
Optometrist 152W00000X
License number
972 AZ
Self-reported in NPPES; status is on the state search
Practice location
220 N Mckemy Ave, Chandler, AZ 85226
Phone
(480) 961-1865
Enumerated
Sep 30, 2005
Record last updated
Jul 9, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(480) 961-4605
Medicare enrollment
Enrolled (PECOS I20040924000264); may accept Medicare assignment
Medical or professional school
Illinois College Of Optometry At Chicago, 1996
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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Also registered at 220 N Mckemy Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Brenda Binder, O.D.Optometrist1235213273
  2. Mira Bisembina, ODOptometrist1932438587
  3. Kett Blatter, O.D.Optometrist1558358036
  4. James Blumenthal, ODOptometrist1306925524
  5. Kristin Cerni, O.D.Optometrist1053470831
  6. Miguel Chaar, ODOptometrist1932224029

Verify Cathy Hollenbach in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Arizona board licenses this profession
    Search for license 972
    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
Find the Arizona license search

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77% fewer Medicare Part D claims than the average optometrist in 2024

65 Medicare Part D claims for 25 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 54% of claims.

  1. Cathy Hollenbach65
  2. Specialty average277

Most prescribed

  1. Latanoprost31 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: $1,530.65

18 payments; by number, the most common kind was 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.

  1. Cathy Hollenbach$1,530.65
  2. Specialty average$769.99

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Cathy Hollenbach among 1,336 optometrist records in Arizona

Cathy Hollenbach, O.D. is one of 1,336 optometrist records with a practice address in Arizona. 75% 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, 89% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 56% of these records are
  • Graduated1996 · median 2010 among the 746 with a school on file
  • Record last updated2007 · 62% 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 Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

93 optometrist records list a practice address in Chandler

They are 93 of the 5,497 NPPES records with a practice address in Chandler, and 1,336 optometrist records in Arizona.

The 8 optometrist records with the nearest ZIP codes

  1. Kett Blatter, O.D.Chandler, AZ 852261558358036
  2. Daniel Crook, O.D.Chandler, AZ 852261720075146
  3. Karen Grandi, ODChandler, AZ 852261801860424
  4. Mark Hechtman, O.D.Chandler, AZ 852261366439754
  5. William Huber, ODChandler, AZ 852261336100833
  6. Gary Jacobsen, ODChandler, AZ 852261891786513
  7. Ronald Kuhns, O.D.Chandler, AZ 852261386605855
  8. Elizabeth Madara, ODChandler, AZ 852261568436087

Common questions

What is Cathy Hollenbach, O.D.'s NPI number?

Cathy Hollenbach, O.D.'s National Provider Identifier (NPI) is 1629065016, issued on Sep 30, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Cathy Hollenbach, O.D. located?

The NPPES record lists a practice address at 220 N Mckemy Ave, Chandler, AZ, 85226. Phone: (480) 961-1865. Providers update this record themselves, so call before visiting.

How can I verify Cathy Hollenbach, O.D.'s license?

NPPES lists Arizona license number 972, as entered by the provider. Search the Arizona board that licenses this profession; the NPPES record confirms identity only.

How much does Cathy Hollenbach, O.D. prescribe under Medicare Part D?

In 2024, Cathy Hollenbach, O.D. had 65 Medicare Part D claims for 25 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.