NPPES file of Aug 9, 2026

Omar Ramos Diaz, MSN, NP-C

Gerontology Nurse Practitioner · Cincinnati, OH

Omar Ramos Diaz, MSN, NP-C is a gerontology nurse practitioner with a practice address in Cincinnati, Ohio, and NPI 1922594167, issued on Jul 10, 2018. Check the license (Ohio APRN.CNP.023101, as entered in NPPES) with the Ohio 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
1922594167
Name
Omar Ramos Diaz
Credential
MSN, NP-C
Primary taxonomy
Gerontology Nurse Practitioner 363LG0600X
License number
APRN.CNP.023101 OH
Self-reported in NPPES; status is on the state search
Practice location
4001 Rosslyn Dr, Cincinnati, OH 45209
Phone
(513) 699-9090
Enumerated
Jul 10, 2018
Record last updated
Jun 6, 2025
Medicare enrollment
Enrolled (PECOS I20230823004629); accepts Medicare assignment
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 4001 Rosslyn Dr

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

  1. Christine BachaOccupational Therapy Assistant1306405196
  2. Katherine Coppoletti, PTAPhysical Therapy Assistant1801350343
  3. Krista Crea, PTPhysical Therapist1275758286
  4. Alison DubasakFamily Nurse Practitioner1053887166
  5. Victoria Green, APRN, CNPNurse Practitioner1770298416
  6. Kamiia Hudson, RNRegistered Nurse1619415544

Verify Omar Ramos Diaz in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Ohio board licenses this profession
    Search for license APRN.CNP.023101
    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 Ohio license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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93% more Medicare Part D claims than the average gerontology nurse practitioner in 2024

2,638 Medicare Part D claims for 194 beneficiaries, against an average of 1,369 among the 6,165 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims. 105 claims were for opioids.

  1. Omar Diaz2,638
  2. Specialty average1,369

Most prescribed

  1. Potassium Chloride145 claims
  2. Levothyroxine Sodium113 claims
  3. Amlodipine Besylate104 claims
  4. Atorvastatin Calcium89 claims
  5. Trazodone Hcl87 claims
  6. Furosemide74 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.

Bills Medicare through one group practice

  1. Medical Housecalls LLCVilla Hills, KY

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Omar Ramos Diaz among 526 gerontology nurse practitioner records in Ohio

Omar Ramos Diaz, MSN, NP-C is one of 526 gerontology nurse practitioner records with a practice address in Ohio. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 43% of them.

  • NPI issued2018 · 43% of these records are older, 49% newer
  • In a Medicare fileYes · 83% of these records are
  • In the CMS Doctors and Clinicians fileYes · 70% of these records are
  • Graduated2018 · median 2019 among the 369 with a school on file
  • Record last updated2025 · 36% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LG0600X and a Ohio practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Gerontology Nurse Practitioner providers in Ohio

There are 526 gerontology nurse practitioner records in Ohio.

The 8 gerontology nurse practitioner records with the nearest ZIP codes

  1. Hannah Simms, NPCincinnati, OH 452091275234031
  2. Chandler Bell, CNPCincinnati, OH 452111912372194
  3. Farsha JohnsonCincinnati, OH 452111447913900
  4. Paige Obert, AG-ACNP, BCCincinnati, OH 452111730565235
  5. Harriet Haysel, APRNCincinnati, OH 452121316769961
  6. Stacey Willging, NPCincinnati, OH 452121548981962
  7. Julie Zimmer, NPCincinnati, OH 452121871959338
  8. Tabatha Case, RN MSNCincinnati, OH 452051932807013

Common questions

What is Omar Ramos Diaz, MSN, NP-C's NPI number?

Omar Ramos Diaz, MSN, NP-C's National Provider Identifier (NPI) is 1922594167, issued on Jul 10, 2018. An NPI identifies a provider in billing; it is not a license.

Where is Omar Ramos Diaz, MSN, NP-C located?

The NPPES record lists a practice address at 4001 Rosslyn Dr, Cincinnati, OH, 45209. Phone: (513) 699-9090. Providers update this record themselves, so call before visiting.

How can I verify Omar Ramos Diaz, MSN, NP-C's license?

NPPES lists Ohio license number APRN.CNP.023101, as entered by the provider. Search the Ohio board that licenses this profession; the NPPES record confirms identity only.

How much does Omar Ramos Diaz, MSN, NP-C prescribe under Medicare Part D?

In 2024, Omar Ramos Diaz, MSN, NP-C had 2,638 Medicare Part D claims for 194 beneficiaries; the average among gerontology nurse practitioner prescribers was 1,369. 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.