NPPES file of Aug 9, 2026

Catherine Ann Holladay, DO

Psychiatry Physician · Sandusky, OH

Catherine Ann Holladay, DO is a psychiatry physician with a practice address in Sandusky, Ohio, and NPI 1538153291, issued on Sep 8, 2005. Check the license (Ohio 34005818H, as entered in NPPES) on the State Medical Board of Ohio; 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
1538153291
Name
Catherine Ann Holladay
Credential
DO
Primary taxonomy
Psychiatry Physician 2084P0800X
License number
34005818H OH
Self-reported in NPPES; status is on the state search
Practice location
1717 E Perkins Ave, Sandusky, OH 44870
Phone
(419) 624-8330
Enumerated
Sep 8, 2005
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 1717 E Perkins Ave

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

  1. Marlene Boas, PH.D., LPCCMental Health Counselor1972671949
  2. Anne KrupaMassage Therapist1063160240
  3. Linda Waters, PCCProfessional Counselor1356663900

Verify Catherine Ann Holladay in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersState Medical Board of Ohio
    Search for license 34005818H
    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
Open the Ohio license search

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13% fewer Medicare Part D claims than the average psychiatry physician in 2024

873 Medicare Part D claims for 67 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 5% of claims.

  1. Catherine Holladay873
  2. Specialty average1,000

Most prescribed

  1. Clonazepam156 claims
  2. Trazodone Hcl82 claims
  3. Escitalopram Oxalate79 claims
  4. Alprazolam74 claims
  5. Sertraline Hcl58 claims
  6. Fluoxetine Hcl51 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: $745.51

13 payments; by number, the most common kind was food and beverage; the largest payer was Axsome Therapeutics, Inc. The 13,693 providers of this specialty with any payment received $4,954.93 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Catherine Holladay$745.51
  2. Specialty average$4,954.93

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

Catherine Ann Holladay among 1,587 psychiatry physician records in Ohio

Catherine Ann Holladay, DO is one of 1,587 psychiatry physician records with a practice address in Ohio. 70% 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, 93% newer
  • In a Medicare fileYes · 70% of these records are
  • In the CMS Doctors and Clinicians fileNo · 49% of these records are
  • Record last updated2007 · 61% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a Ohio practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Psychiatry Physician providers in Ohio

There are 1,587 psychiatry physician records in Ohio.

The 8 psychiatry physician records with the nearest ZIP codes

  1. Christy CoxSandusky, OH 448701366033599
  2. Abas Jama, MDSandusky, OH 448701073779492
  3. Anupam Jha, MDSandusky, OH 448701174806293
  4. Ih Lin, MDSandusky, OH 448701922092303
  5. Carlos Lowell, D.O.Sandusky, OH 448701912938283
  6. Stephen Schuldt, M.D.Sandusky, OH 448701174751788
  7. Kelly Sprout, M.D.Sandusky, OH 448701659422129
  8. Upender Gehlot, M.D.Norwalk, OH 448571376706531

Common questions

What is Catherine Ann Holladay, DO's NPI number?

Catherine Ann Holladay, DO's National Provider Identifier (NPI) is 1538153291, issued on Sep 8, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Catherine Ann Holladay, DO located?

The NPPES record lists a practice address at 1717 E Perkins Ave, Sandusky, OH, 44870. Phone: (419) 624-8330. Providers update this record themselves, so call before visiting.

How can I verify Catherine Ann Holladay, DO's license?

NPPES lists Ohio license number 34005818H, as entered by the provider. Search the State Medical Board of Ohio at https://elicense.ohio.gov/oh_verifylicense. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Catherine Ann Holladay, DO prescribe under Medicare Part D?

In 2024, Catherine Ann Holladay, DO had 873 Medicare Part D claims for 67 beneficiaries; the average among psychiatry physician prescribers was 1,000. 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.