Gregory K. Sindmack, MD
Obstetrics & Gynecology Physician · Klamath Falls, OR
Gregory K. Sindmack, MD is an obstetrics & gynecology physician with a practice address in Klamath Falls, Oregon, and NPI 1669418695, issued on Jun 20, 2006. Check the license (Oregon MD18004, as entered in NPPES) on the Oregon Medical Board; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Gregory K. Sindmack
- Credential
- MD
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- MD18004 OR
Self-reported in NPPES; status is on the state search - Practice location
- 2686 Campus Drive, Klamath Falls, OR 97601
- Phone
- (541) 882-8829
- Enumerated
- Jun 20, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (541) 882-8086
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 654 in Oregon → Look up another NPI →
Verify Gregory K. Sindmack in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOregon Medical Board
Search for license MD18004Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Gregory K. Sindmack among 654 obstetrics & gynecology physician records in Oregon
Gregory K. Sindmack, MD is one of 654 obstetrics & gynecology physician records with a practice address in Oregon. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than 11% of them.
- NPI issued2006 · 11% of these records are older, 48% newer
- In a Medicare fileNo · 73% of these records are
- In the CMS Doctors and Clinicians fileNo · 63% of these records are
- Record last updated2007 · 57% 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 Oregon 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 Oregon
There are 654 obstetrics & gynecology physician records in Oregon. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 654 in Oregon → Every provider in Klamath Falls → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Christopher Barton, M.D.Klamath Falls, OR 976011699001073
- Chelsea Crabtree, D.O.Klamath Falls, OR 976011720241425
- Luana Hossain, M.D.Klamath Falls, OR 976011639558836
- Laura Matlock, DOKlamath Falls, OR 976011417342353
- Antonio Mazzaferro, MDKlamath Falls, OR 976011730768318
- Martin Meinig, M.D.Klamath Falls, OR 976011881799773
- Arielle Metz, M.D.Klamath Falls, OR 976011437182268
- Mark Parra, MDKlamath Falls, OR 976011053387431
Common questions
What is Gregory K. Sindmack, MD's NPI number?
Gregory K. Sindmack, MD's National Provider Identifier (NPI) is 1669418695, issued on Jun 20, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Gregory K. Sindmack, MD located?
The NPPES record lists a practice address at 2686 Campus Drive, Klamath Falls, OR, 97601. Phone: (541) 882-8829. Providers update this record themselves, so call before visiting.
How can I verify Gregory K. Sindmack, MD's license?
NPPES lists Oregon license number MD18004, as entered by the provider. Search the Oregon Medical Board at https://www.oregon.gov/OMB/Pages/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.