Karen Swei Ren, MD
Pain Medicine (Anesthesiology) Physician · Centerville, OH
Karen Swei Ren, MD is a pain medicine (anesthesiology) physician with a practice address in Centerville, Ohio, and NPI 1871082081, issued on May 2, 2018. Check the license (Ohio 35.148849, as entered in NPPES) on the State Medical Board of Ohio; the Medicare figures below come from public CMS files.
- Name
- Karen Swei Ren
- Credential
- MD
- Primary taxonomy
- Pain Medicine (Anesthesiology) Physician 207LP2900X
- License number
- 35.148849 OH
Self-reported in NPPES; status is on the state search - Practice location
- 2400 Miami Valley Dr, Centerville, OH 45459
- Phone
- (937) 438-2400
- Enumerated
- May 2, 2018
- Record last updated
- Sep 12, 2023
- Medicare enrollment
- Enrolled (PECOS I20230925002324); accepts Medicare assignment
- Medical or professional school
- Ohio State University College Of Medicine, 2018
- Entity
- Type 1 · individual
8 nearest pain medicine (anesthesiology) physician records → All 167 in Ohio → Look up another NPI →
Also registered at 2400 Miami Valley Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Shivani AmbaniInternal Medicine Physician1891439246
- Richard AndersonAnesthesiology Physician1801188693
- Amie BenderAcute Care Nurse Practitioner1619590429
- Erin Berberich, ATCAthletic Trainer1063964062
- Lindsey Bowen, PAPhysician Assistant1033462833
- Denise Buenger, PA-CPhysician Assistant1417444134
Verify Karen Swei Ren in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersState Medical Board of Ohio
Search for license 35.148849Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
91% fewer Medicare Part D claims than the average pain medicine (anesthesiology) physician in 2024
164 Medicare Part D claims for 52 beneficiaries, against an average of 1,750 among the 2,982 providers of this specialty who prescribed in Part D. 13 claims were for opioids.
Most prescribed
- Gabapentin41 claims
- Pregabalin41 claims
- Methocarbamol31 claims
- Cyclobenzaprine Hcl19 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): 76.8 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: $30.46
1 payment: food and beverage; the largest payer was Abbott Laboratories. The 2,789 providers of this specialty with any payment received $3,225.41 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
- Premier Health Specialists IncCenterville, OH
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Karen Swei Ren among 167 pain medicine (anesthesiology) physician records in Ohio
Karen Swei Ren, MD is one of 167 pain medicine (anesthesiology) physician records with a practice address in Ohio. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 95% of them.
- NPI issued2018 · 95% of these records are older, 3% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 75% of these records are
- Graduated2018 · median 2002 among the 126 with a school on file
- Record last updated2023 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207LP2900X and a Ohio practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Pain Medicine (Anesthesiology) Physician providers in Ohio
There are 167 pain medicine (anesthesiology) physician records in Ohio.
All 167 in Ohio → Every provider in Centerville → Pain Medicine (Anesthesiology) Physician nationwide →
The 8 pain medicine (anesthesiology) physician records with the nearest ZIP codes
- Mervet Saleh, M.D.Dayton, OH 454591356414957
- Tammy Dann, D.O.Dayton, OH 454581932361573
- Laila Gomaa, MDDayton, OH 454581356341911
- Joseph Wray, M.D.Dayton, OH 454581831582261
- Abdul Shahid, M.D.Beavercreek, OH 454311063496586
- Deborah Coates, DODayton, OH 454201124123419
- Townsend Smith, M.D.Dayton, OH 454091154404440
- Lita Budiamal, MDDayton, OH 454081962518019
Common questions
What is Karen Swei Ren, MD's NPI number?
Karen Swei Ren, MD's National Provider Identifier (NPI) is 1871082081, issued on May 2, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Karen Swei Ren, MD located?
The NPPES record lists a practice address at 2400 Miami Valley Dr, Centerville, OH, 45459. Phone: (937) 438-2400. Providers update this record themselves, so call before visiting.
How can I verify Karen Swei Ren, MD's license?
NPPES lists Ohio license number 35.148849, 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 Karen Swei Ren, MD prescribe under Medicare Part D?
In 2024, Karen Swei Ren, MD had 164 Medicare Part D claims for 52 beneficiaries; the average among pain medicine (anesthesiology) physician prescribers was 1,750. Part D covers Medicare prescriptions only.
What is Karen Swei Ren, MD's MIPS final score?
The 2023 MIPS final score is 76.8 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.