Mary Margaret Duck Robertshaw, M.D.
Internal Medicine Physician · Cincinnati, OH
Mary Margaret Duck Robertshaw, M.D. is an internal medicine physician with a practice address in Cincinnati, Ohio, and NPI 1013181361, issued on Apr 17, 2008. Check the license (Ohio 35-098241, as entered in NPPES) on the State Medical Board of Ohio; the Medicare figures below come from public CMS files.
- Name
- Mary Margaret Duck Robertshaw
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 35-098241 OH
Self-reported in NPPES; status is on the state search - Practice location
- 4460 Red Bank RD, Cincinnati, OH 45227
- Phone
- (513) 475-7370
- Enumerated
- Apr 17, 2008
- Record last updated
- Jan 10, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (513) 562-9098
- Medicaid IDs
- 7100207640 KY
201122970 IN
0066760 OH - Medicare enrollment
- Enrolled (PECOS I20120705000052); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 5,277 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.
- Alicia Clare, NPNurse Practitioner1154758472
- Robert Cody, M.D.Hematology & Oncology Physician1295721215
- Erin CunninghamAcute Care Nurse Practitioner1730519414
- Catherine Degroff, PA-CMedical Physician Assistant1528388923
- David Donnelly, ATC, PA-CPhysician Assistant1699226753
- Amanda Fiorito, CRNPNurse Practitioner1326368747
Verify Mary Margaret Duck Robertshaw in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersState Medical Board of Ohio
Search for license 35-098241Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
7% more Medicare Part D claims than the average internal medicine physician in 2024
3,413 Medicare Part D claims for 259 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims. 81 claims were for opioids.
Most prescribed
- Atorvastatin Calcium245 claims
- Levothyroxine Sodium167 claims
- Amlodipine Besylate107 claims
- Lisinopril106 claims
- Hydrochlorothiazide74 claims
- Omeprazole66 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: $15.86
1 payment: food and beverage; the largest payer was Exact Sciences Corporation. The 50,334 providers of this specialty with any payment received $1,303.06 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
- University OF Cincinnati Physicians Company LLCCincinnati, OH
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mary Margaret Duck Robertshaw among 5,277 internal medicine physician records in Ohio
Mary Margaret Duck Robertshaw, M.D. is one of 5,277 internal medicine physician records with a practice address in Ohio. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 52% of them.
- NPI issued2008 · 52% of these records are older, 44% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 65% of these records are
- Graduated2008 · median 2006 among the 3,414 with a school on file
- Record last updated2018 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Ohio practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
566 internal medicine physician records list a practice address in Cincinnati
They are 566 of the 31,362 NPPES records with a practice address in Cincinnati, and 5,277 internal medicine physician records in Ohio.
All 5,277 in Ohio → Every provider in Cincinnati → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Bradley Beckham, M.D.Cincinnati, OH 452271730474891
- Loraine Glaser-Zakem, MDCincinnati, OH 452271699810465
- Nathan Gorrell, MDCincinnati, OH 452271659958767
- Craig Gurney, M.D.Cincinnati, OH 452271457525719
- Lisa Larkin, MD.Cincinnati, OH 452271679562839
- Nandawula Mutema, MDCincinnati, OH 452271265418362
- Emily Neaville, M.D.Cincinnati, OH 452271811374861
- Antoinette Pragalos, M.D.Cincinnati, OH 452271851393730
Common questions
What is Mary Margaret Duck Robertshaw, M.D.'s NPI number?
Mary Margaret Duck Robertshaw, M.D.'s National Provider Identifier (NPI) is 1013181361, issued on Apr 17, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Mary Margaret Duck Robertshaw, M.D. located?
The NPPES record lists a practice address at 4460 Red Bank RD, Cincinnati, OH, 45227. Phone: (513) 475-7370. Providers update this record themselves, so call before visiting.
How can I verify Mary Margaret Duck Robertshaw, M.D.'s license?
NPPES lists Ohio license number 35-098241, 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 Mary Margaret Duck Robertshaw, M.D. prescribe under Medicare Part D?
In 2024, Mary Margaret Duck Robertshaw, M.D. had 3,413 Medicare Part D claims for 259 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.