Douglas Folzenlogen, M.D.
Internal Medicine Physician · Chillicothe, OH
Douglas Folzenlogen, M.D. is an internal medicine physician with a practice address in Chillicothe, Ohio, and NPI 1801891338, issued on Jun 21, 2005. Check the license (Ohio 35074264F, as entered in NPPES) on the State Medical Board of Ohio; the Medicare figures below come from public CMS files.
- Name
- Douglas Folzenlogen
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 35074264F OH
Self-reported in NPPES; status is on the state search - Practice location
- 4437 State Route 159, Chillicothe, OH 45601
- Phone
- (740) 775-2652
- Enumerated
- Jun 21, 2005
- Record last updated
- Apr 11, 2008 (not updated in 18 years: call before relying on the address or phone)
- Fax
- (740) 775-2699
- Medicaid ID
- 2062799 OH
- Medicare enrollment
- Enrolled (PECOS I20160928001500); accepts Medicare assignment
- Medical or professional school
- University Of Cincinnati College Of Medicine, 1994
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 5,277 in Ohio → Look up another NPI →
Also registered at 4437 State Route 159
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Douglas Folzenlogen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersState Medical Board of Ohio
Search for license 35074264FCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
79% fewer Medicare Part D claims than the average internal medicine physician in 2024
665 Medicare Part D claims for 265 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 40 claims were for opioids.
Most prescribed
- Eliquis33 claims
- Prednisone27 claims
- Ciprofloxacin Hcl25 claims
- Metoprolol Tartrate23 claims
- Furosemide22 claims
- Pantoprazole Sodium22 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): 40.6 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).
One hospital affiliation
- Beaufort County Memorial HospitalBeaufort, SC · Acute Care Hospitals4 of 5 stars
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Douglas Folzenlogen among 5,277 internal medicine physician records in Ohio
Douglas Folzenlogen, 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 87% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 65% of these records are
- Graduated1994 · median 2006 among the 3,414 with a school on file
- Record last updated2008 · 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).
64 internal medicine physician records list a practice address in Chillicothe
They are 64 of the 2,938 NPPES records with a practice address in Chillicothe, and 5,277 internal medicine physician records in Ohio.
All 5,277 in Ohio → Every provider in Chillicothe → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Bhuvaneswari Chinnappan, M.D.Chillicothe, OH 456011154428480
- Lloyd Coats, D.O.Chillicothe, OH 456011477558906
- Paul Jackson, MDChillicothe, OH 456011568409852
- Gopinath Nair, M.D.Chillicothe, OH 456011487765707
- Zoran Naumovski, MDChillicothe, OH 456011326041138
- Thomas OommenChillicothe, OH 456011346324993
- Indravadan Parikh, M.D., F.A.C.P.Chillicothe, OH 456011659471159
- Edward Severyn, MDChillicothe, OH 456011205944741
Common questions
What is Douglas Folzenlogen, M.D.'s NPI number?
Douglas Folzenlogen, M.D.'s National Provider Identifier (NPI) is 1801891338, issued on Jun 21, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Douglas Folzenlogen, M.D. located?
The NPPES record lists a practice address at 4437 State Route 159, Chillicothe, OH, 45601. Phone: (740) 775-2652. Providers update this record themselves, so call before visiting.
How can I verify Douglas Folzenlogen, M.D.'s license?
NPPES lists Ohio license number 35074264F, 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 Douglas Folzenlogen, M.D. prescribe under Medicare Part D?
In 2024, Douglas Folzenlogen, M.D. had 665 Medicare Part D claims for 265 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Douglas Folzenlogen, M.D.'s MIPS final score?
The 2023 MIPS final score is 40.6 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.