Gregory Karasik, MD
Obstetrics & Gynecology Physician · Portsmouth, OH
Gregory Karasik, MD is an obstetrics & gynecology physician with a practice address in Portsmouth, Ohio, and NPI 1144299884, issued on Mar 15, 2006. Check the license (Ohio 35-068821, as entered in NPPES) on the State Medical Board of Ohio; the Medicare figures below come from public CMS files.
- Name
- Gregory Karasik
- Credential
- MD
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- 35-068821 OH
Self-reported in NPPES; status is on the state search - Practice location
- 1735 27TH St Ste 202, Portsmouth, OH 45662
- Phone
- (740) 356-2496
- Enumerated
- Mar 15, 2006
- Record last updated
- Sep 13, 2023
- Fax
- (740) 356-6334
- Medicaid ID
- 0171522 OH
- Medicare enrollment
- Enrolled (PECOS I20050211000848); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 1,572 in Ohio → Look up another NPI →
Also registered at 1735 27TH St Ste 202
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Darren Adams, D.O.Obstetrics & Gynecology Physician1770549024
- Carolyn Arnett, DOObstetrics & Gynecology Physician1326031659
- Allison Hamilton Bentley, MDObstetrics & Gynecology Physician1902199268
- Arrika Mains, DOObstetrics & Gynecology Physician1194081109
- Diana Young, CNPNurse Practitioner1265837249
Verify Gregory Karasik in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersState Medical Board of Ohio
Search for license 35-068821Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
15% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024
140 Medicare Part D claims for 48 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. 19 claims were for opioids.
Most prescribed
- Estradiol30 claims
- Ibuprofen25 claims
- Oxycodone-Acetaminophen15 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.
Bills Medicare through 2 group practices
- Northern Ohio Medical Specialists, LLCBellevue, OH
- Somc Medical Care Foundation, Inc.Portsmouth, OH
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gregory Karasik among 1,572 obstetrics & gynecology physician records in Ohio
Gregory Karasik, 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
- Graduated1982 · median 2004 among the 1,041 with a school on file
- Record last updated2023 · 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 Portsmouth → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Darren Adams, D.O.Portsmouth, OH 456621770549024
- Carolyn Arnett, DOPortsmouth, OH 456621326031659
- Fred Courtney, DOPortsmouth, OH 456621063661536
- Allison Hamilton Bentley, MDPortsmouth, OH 456621902199268
- Arrika Mains, DOPortsmouth, OH 456621194081109
- Jennifer Roberts, DOPortsmouth, OH 456621073734539
- Ryan Sandlin, D.O.Portsmouth, OH 456621114246063
- Yong Song, MDPortsmouth, OH 456621861470460
Common questions
What is Gregory Karasik, MD's NPI number?
Gregory Karasik, MD's National Provider Identifier (NPI) is 1144299884, issued on Mar 15, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Gregory Karasik, MD located?
The NPPES record lists a practice address at 1735 27TH St Ste 202, Portsmouth, OH, 45662. Phone: (740) 356-2496. Providers update this record themselves, so call before visiting.
How can I verify Gregory Karasik, MD's license?
NPPES lists Ohio license number 35-068821, 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 Gregory Karasik, MD prescribe under Medicare Part D?
In 2024, Gregory Karasik, MD had 140 Medicare Part D claims for 48 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. Part D covers Medicare prescriptions only.
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.