Carolyn M. Lonser, MD
Obstetrics & Gynecology Physician · Columbus, OH
Carolyn M. Lonser, MD is an obstetrics & gynecology physician with a practice address in Columbus, Ohio, and NPI 1730138306, issued on May 9, 2006. Check the license (Ohio 35.122829, as entered in NPPES) on the State Medical Board of Ohio; the Medicare figures below come from public CMS files.
- Name
- Carolyn M. Lonser
- Credential
- MD
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- 35.122829 OH
Self-reported in NPPES; status is on the state search - Practice location
- 1800 Zollinger RD, Columbus, OH 43221
- Phone
- (614) 293-2076
- Enumerated
- May 9, 2006
- Record last updated
- Apr 8, 2026
- Fax
- (614) 366-0094
- Medicare enrollment
- Enrolled (PECOS I20140318000578); accepts Medicare assignment
- Medical or professional school
- Loma Linda University School Of Medicine, 1994
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 1,572 in Ohio → Look up another NPI →
Also registered at 1800 Zollinger RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jacqueline Bailey, APRN-CNPNurse Practitioner1780248443
- Tracy Bank, MDMaternal & Fetal Medicine Physician1669976072
- Zachary Bittinger, MDFamily Medicine Physician1457881880
- Rudolf Bond, M.D.Family Medicine Physician1689106395
- Khaled Boubes, M.D.Nephrology Physician1356573976
- Ruth Chan, DORheumatology Physician1376809616
Verify Carolyn M. Lonser in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersState Medical Board of Ohio
Search for license 35.122829Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
46% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024
89 Medicare Part D claims for 33 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D.
Most prescribed
- Estradiol20 claims
- Yuvafem20 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): 95.3 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
- Osu General Internal Medicine LLCColumbus, OH
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Carolyn M. Lonser among 1,572 obstetrics & gynecology physician records in Ohio
Carolyn M. Lonser, MD is one of 1,572 obstetrics & gynecology physician records with a practice address in Ohio. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 17% of them.
- NPI issued2006 · 17% of these records are older, 47% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated1994 · median 2004 among the 1,041 with a school on file
- Record last updated2026 · 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 207V00000X and a Ohio practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Obstetrics & Gynecology Physician providers in Ohio
There are 1,572 obstetrics & gynecology physician records in Ohio.
All 1,572 in Ohio → Every provider in Columbus → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- David Bell, M.D.Columbus, OH 432211548358716
- Michael Blumenfeld, M.D.Columbus, OH 432211538108345
- Stephanie Costa, M.D.Columbus, OH 432211215025424
- Sangeeta Crouser, M.D.Columbus, OH 432211295823433
- Melissa Goist, M.D.Columbus, OH 432211043253859
- Carol Greco, M.D.Columbus, OH 432211417045667
- Michelle Isley, MDColumbus, OH 432211437256203
- Jason Melillo, M.D.Columbus, OH 432211164510228
Common questions
What is Carolyn M. Lonser, MD's NPI number?
Carolyn M. Lonser, MD's National Provider Identifier (NPI) is 1730138306, issued on May 9, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Carolyn M. Lonser, MD located?
The NPPES record lists a practice address at 1800 Zollinger RD, Columbus, OH, 43221. Phone: (614) 293-2076. Providers update this record themselves, so call before visiting.
How can I verify Carolyn M. Lonser, MD's license?
NPPES lists Ohio license number 35.122829, 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 Carolyn M. Lonser, MD prescribe under Medicare Part D?
In 2024, Carolyn M. Lonser, MD had 89 Medicare Part D claims for 33 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. Part D covers Medicare prescriptions only.
What is Carolyn M. Lonser, MD's MIPS final score?
The 2023 MIPS final score is 95.3 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.