Rebecca Hillyer Leary, DO
Endocrinology, Diabetes & Metabolism Physician · Scarborough, ME
Rebecca Hillyer Leary, DO is an endocrinology, diabetes & metabolism physician with a practice address in Scarborough, Maine, and NPI 1942695093, issued on Apr 4, 2015. Check the license (Maine DO2992, as entered in NPPES) on the Maine Board of Licensure in Medicine; the Medicare figures below come from public CMS files.
- Name
- Rebecca Hillyer Leary
- Credential
- DO
- Primary taxonomy
- Endocrinology, Diabetes & Metabolism Physician 207RE0101X
- License numbers
- DO2992 ME
34449 NH
Self-reported in NPPES; status is on the state search - Practice location
- 175 US Route 1, Scarborough, ME 04074
- Phone
- (207) 396-7700
- Enumerated
- Apr 4, 2015
- Record last updated
- Mar 31, 2025
- Medicare enrollment
- Enrolled (PECOS I20200902002778); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest endocrinology, diabetes & metabolism physician records → All 28 in Maine → Look up another NPI →
Also registered at 175 US Route 1
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Khaled Al Sibai, MDEndocrinology, Diabetes & Metabolism Physician1144715327
- Jayachidambaram Ambalavanan, MDEndocrinology, Diabetes & Metabolism Physician1073173738
- Julie Barnes, RDRegistered Dietitian1821117201
- S. Thomas Bigos, MDEndocrinology, Diabetes & Metabolism Physician1679502892
- Robert Bing-You, MDEndocrinology, Diabetes & Metabolism Physician1659303261
- Irwin Brodsky, MDEndocrinology, Diabetes & Metabolism Physician1326070905
Verify Rebecca Hillyer Leary in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaine Board of Licensure in Medicine
Search for license DO2992Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
29% fewer Medicare Part D claims than the average endocrinology, diabetes & metabolism physician in 2024
1,869 Medicare Part D claims for 313 beneficiaries, against an average of 2,630 among the 8,223 providers of this specialty who prescribed in Part D. Brand-name drugs were 45% of claims.
Most prescribed
- Levothyroxine Sodium450 claims
- Jardiance93 claims
- Ozempic88 claims
- Metformin Hcl Er87 claims
- Methimazole82 claims
- Metformin Hcl64 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 MIPS final score for 2023 (Medicare payment program): 98.1 of 100
The Merit-based Incentive Payment System score is reported for this clinician. 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; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- MainehealthPortland, ME
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Rebecca Hillyer Leary among 28 endocrinology, diabetes & metabolism physician records in Maine
Rebecca Hillyer Leary, DO is one of 28 endocrinology, diabetes & metabolism physician records with a practice address in Maine. 89% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 75% of them.
- NPI issued2015 · 75% of these records are older, 21% newer
- In a Medicare fileYes · 89% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated2015 · median 2004 among the 19 with a school on file
- Record last updated2025 · 57% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RE0101X and a Maine practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
15 endocrinology, diabetes & metabolism physician records list a practice address in Scarborough
They are 15 of the 1,043 NPPES records with a practice address in Scarborough, and 28 endocrinology, diabetes & metabolism physician records in Maine.
All 28 in Maine → Every provider in Scarborough → Endocrinology, Diabetes & Metabolism Physician nationwide →
The 8 endocrinology, diabetes & metabolism physician records with the nearest ZIP codes
- Khaled Al Sibai, MDScarborough, ME 040741144715327
- Stephan Babirak, MDScarborough, ME 040741689619884
- S. Thomas Bigos, MDScarborough, ME 040741679502892
- Robert Bing-You, MDScarborough, ME 040741659303261
- Irwin Brodsky, MDScarborough, ME 040741326070905
- Marie Caldwell, MDScarborough, ME 040741972863447
- Emily Demetriou, MDScarborough, ME 040741558439414
- Heidi Golden, MDScarborough, ME 040741629235387
Common questions
What is Rebecca Hillyer Leary, DO's NPI number?
Rebecca Hillyer Leary, DO's National Provider Identifier (NPI) is 1942695093, issued on Apr 4, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Rebecca Hillyer Leary, DO located?
The NPPES record lists a practice address at 175 US Route 1, Scarborough, ME, 04074. Phone: (207) 396-7700. Providers update this record themselves, so call before visiting.
How can I verify Rebecca Hillyer Leary, DO's license?
NPPES lists Maine license number DO2992, as entered by the provider. Search the Maine Board of Licensure in Medicine at https://www.maine.gov/md/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Rebecca Hillyer Leary, DO prescribe under Medicare Part D?
In 2024, Rebecca Hillyer Leary, DO had 1,869 Medicare Part D claims for 313 beneficiaries; the average among endocrinology, diabetes & metabolism physician prescribers was 2,630. Part D covers Medicare prescriptions only.
What is Rebecca Hillyer Leary, DO's MIPS final score?
The 2023 MIPS final score is 98.1 of 100. 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.