Mary Hamm, ARNP/CNP
Nurse Practitioner · Cincinnati, OH
Mary Hamm, ARNP/CNP is a nurse practitioner with a practice address in Cincinnati, Ohio, and NPI 1306166772, issued on Jun 8, 2010. Check the license (Ohio COA.09858-NP, as entered in NPPES) with the Ohio board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mary Hamm
- Credential
- ARNP/CNP
- Primary taxonomy
- Nurse Practitioner 363L00000X
- License numbers
- COA.09858-NP OH
3005423 KY
Self-reported in NPPES; status is on the state search - Practice location
- 4460 Red Bank RD, Cincinnati, OH 45227
- Phone
- (513) 321-4333
- Enumerated
- Jun 8, 2010
- Record last updated
- Oct 25, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (513) 232-0100
- Medicare enrollment
- Enrolled (PECOS I20100923000004); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest nurse practitioner records → All 4,254 in Ohio → Look up another NPI →
Also registered at 4460 Red Bank RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Mary Duck Robertshaw, M.D.Internal Medicine Physician1013181361
Verify Mary Hamm in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Ohio board licenses this profession
Search for license COA.09858-NPCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
58% fewer Medicare Part D claims than the average nurse practitioner in 2024
470 Medicare Part D claims for 138 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D. Brand-name drugs were 23% of claims.
Most prescribed
- Prednisone31 claims
- Dexamethasone29 claims
- Lenalidomide22 claims
- Erleada20 claims
- Tamoxifen Citrate20 claims
- Anastrozole19 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 74.9 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $392.14
7 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 38,884 providers of this specialty with any payment received $791.64 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Christ Hospital Medical Specialists II, LLCCincinnati, OH
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mary Hamm among 4,254 nurse practitioner records in Ohio
Mary Hamm, ARNP/CNP is one of 4,254 nurse practitioner records with a practice address in Ohio. 72% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 25% of them.
- NPI issued2010 · 25% of these records are older, 73% newer
- In a Medicare fileYes · 72% of these records are
- In the CMS Doctors and Clinicians fileYes · 57% of these records are
- Graduated2007 · median 2018 among the 2,416 with a school on file
- Record last updated2019 · 46% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363L00000X and a Ohio practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
766 nurse practitioner records list a practice address in Cincinnati
They are 766 of the 31,362 NPPES records with a practice address in Cincinnati, and 4,254 nurse practitioner records in Ohio.
All 4,254 in Ohio → Every provider in Cincinnati → Nurse Practitioner nationwide →
The 8 nurse practitioner records with the nearest ZIP codes
- Alicia Clare, NPCincinnati, OH 452271154758472
- Amanda Fiorito, CRNPCincinnati, OH 452271326368747
- Ronda Lehn, CNPCincinnati, OH 452271679749568
- Brandon WendlingCincinnati, OH 452271699183814
- Kimberly Cain-Steinmann, APRN-CNPCincinnati, OH 452291255392858
- Denise Davis, CNPCincinnati, OH 452291124082540
- Barbara Giambra, PHD, RN, CPNPCincinnati, OH 452291821051558
- Elizabeth Gilger, APRN-CNPCincinnati, OH 452291346227097
Common questions
What is Mary Hamm, ARNP/CNP's NPI number?
Mary Hamm, ARNP/CNP's National Provider Identifier (NPI) is 1306166772, issued on Jun 8, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Mary Hamm, ARNP/CNP located?
The NPPES record lists a practice address at 4460 Red Bank RD, Cincinnati, OH, 45227. Phone: (513) 321-4333. Providers update this record themselves, so call before visiting.
How can I verify Mary Hamm, ARNP/CNP's license?
NPPES lists Ohio license number COA.09858-NP, as entered by the provider. Search the Ohio board that licenses this profession; the NPPES record confirms identity only.
How much does Mary Hamm, ARNP/CNP prescribe under Medicare Part D?
In 2024, Mary Hamm, ARNP/CNP had 470 Medicare Part D claims for 138 beneficiaries; the average among nurse practitioner prescribers was 1,109. Part D covers Medicare prescriptions only.
What is Mary Hamm, ARNP/CNP's MIPS final score?
The 2023 MIPS final score is 74.9 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.