NPPES file of Aug 9, 2026

Caroline Palmer, M.D.

Obstetrics & Gynecology Physician · Mason, OH

Caroline Palmer, M.D. is an obstetrics & gynecology physician with a practice address in Mason, Ohio, and NPI 1235393398, issued on Jul 17, 2008. Check the license (Ohio 35.092546, as entered in NPPES) on the State Medical Board of Ohio; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1235393398
Name
Caroline Palmer
Credential
M.D.
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License number
35.092546 OH
Self-reported in NPPES; status is on the state search
Practice location
6010 S Mason Montgomery RD, Mason, OH 45040
Phone
(513) 246-7000
Enumerated
Jul 17, 2008
Record last updated
Aug 31, 2018 (not updated in 8 years: call before relying on the address or phone)
Fax
(513) 204-6355
Medicaid ID
2983115 OH
Medicare enrollment
Enrolled (PECOS I20090824000013); 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.
Download card Updates feed

Also registered at 6010 S Mason Montgomery RD

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

  1. Edward Alten, MDPediatrics Physician1598254708
  2. Melissa Basile, OTPhysical Rehabilitation Occupational Therapist1821480096
  3. Diksha Bedi, MDFamily Medicine Physician1477256717
  4. Stephen BirdPediatrics Physician1891741054
  5. Gretchen Brannon, PA-CPhysician Assistant1285687053
  6. Katherine Broering, M.D.Pediatrics Physician1609142579

Verify Caroline Palmer in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersState Medical Board of Ohio
    Search for license 35.092546
    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
Open 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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

80% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024

33 Medicare Part D claims for 12 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D.

  1. Caroline Palmer33
  2. Specialty average165

Most prescribed

  1. Estradiol18 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): 90.4 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.

  1. Qualityout of 100 · 30% of the final score80.8
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $27.90

1 payment: food and beverage; the largest payer was Davol Inc. The 21,429 providers of this specialty with any payment received $1,030.61 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Caroline Palmer$27.90
  2. Specialty average$1,030.61

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

  1. Trihealth H LLCMontgomery, OH

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

Caroline Palmer among 1,572 obstetrics & gynecology physician records in Ohio

Caroline Palmer, M.D. 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 2008, is newer than 61% of them.

  • NPI issued2008 · 61% of these records are older, 35% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 66% of these records are
  • Graduated2005 · median 2004 among the 1,041 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 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.

The 8 obstetrics & gynecology physician records with the nearest ZIP codes

  1. David Aichholz, M.D.Mason, OH 450401881678787
  2. Jill Roth, D.O.Mason, OH 450401376644617
  3. Marianne Donohue, M.D.Harrison, OH 450301932211216
  4. John Harlan, M.D.Oxford, OH 450561427001866
  5. Alzira Leques, MDOxford, OH 450561265746655
  6. Daniel Stein, M.D.Oxford, OH 450561548212244
  7. Lynn Powers, D.O.Springboro, OH 450661366580177
  8. Colleen Swayze, MDFairfield, OH 450141457300063

Common questions

What is Caroline Palmer, M.D.'s NPI number?

Caroline Palmer, M.D.'s National Provider Identifier (NPI) is 1235393398, issued on Jul 17, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Caroline Palmer, M.D. located?

The NPPES record lists a practice address at 6010 S Mason Montgomery RD, Mason, OH, 45040. Phone: (513) 246-7000. Providers update this record themselves, so call before visiting.

How can I verify Caroline Palmer, M.D.'s license?

NPPES lists Ohio license number 35.092546, 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 Caroline Palmer, M.D. prescribe under Medicare Part D?

In 2024, Caroline Palmer, M.D. had 33 Medicare Part D claims for 12 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. Part D covers Medicare prescriptions only.

What is Caroline Palmer, M.D.'s MIPS final score?

The 2023 MIPS final score is 90.4 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.