Gregory Neill Sacher, MD
Obstetrics & Gynecology Physician · Santa Rosa, CA
Gregory Neill Sacher, MD is an obstetrics & gynecology physician with a practice address in Santa Rosa, California, and NPI 1972682011, issued on Nov 2, 2006. Check the license (California A68058, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Gregory Neill Sacher
- Credential
- MD
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License numbers
- A68058 CA
16766 SD
Self-reported in NPPES; status is on the state search - Practice location
- 500 Doyle Park Dr, Santa Rosa, CA 95405
- Phone
- (707) 303-1719
- Enumerated
- Nov 2, 2006
- Record last updated
- Mar 19, 2025
- Fax
- (707) 387-3696
- Medicaid IDs
- 1972682011 SD
00A680580 CA - Medicare enrollment
- Enrolled (PECOS I20240626000297); accepts Medicare assignment
- Medical or professional school
- Georgetown University School Of Medicine, 1997
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 5,088 in California → Look up another NPI →
Also registered at 500 Doyle Park Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Nicholas Anton, MDInternal Medicine Physician1659364933
- Razi Arifuddin, MDGastroenterology Physician1124085410
- Chad Barylski, NP-C, RN, DC, DACBSPNurse Practitioner1932358553
- Joshua Beirne, M.D.Gastroenterology Physician1841216041
- George Bisbee, MDInternal Medicine Physician1235122516
- Deborah Britt, M.D.Pediatrics Physician1316959307
Verify Gregory Neill Sacher in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A68058Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
82% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024
29 Medicare Part D claims for 13 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D.
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.
Industry payments in 2024: $19.24
1 payment: food and beverage; the largest payer was Organon Llc. 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.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 2 group practices
- Obhg California PCLa Mesa, CA
- Obhg Oregon PCMedford, OR
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gregory Neill Sacher among 5,088 obstetrics & gynecology physician records in California
Gregory Neill Sacher, MD is one of 5,088 obstetrics & gynecology physician records with a practice address in California. 74% 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 5% of them.
- NPI issued2006 · 5% of these records are older, 52% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 53% of these records are
- Graduated1997 · median 2004 among the 2,700 with a school on file
- Record last updated2025 · 64% 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 California 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 California
There are 5,088 obstetrics & gynecology physician records in California.
All 5,088 in California → Every provider in Santa Rosa → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Sahar Doctorvaladan, MDSanta Rosa, CA 954051285957936
- Lela Emad, M.D.Santa Rosa, CA 954051811902612
- Bobby Field, MDSanta Rosa, CA 954051699739912
- Louise Huang, M.D.Santa Rosa, CA 954051205948544
- Natasha Kahl, MDSanta Rosa, CA 954051942252911
- Karen Leung, MDSanta Rosa, CA 954051346206463
- Susan Logan, M.D.Santa Rosa, CA 954051982716221
- Estrelania Williams, M.D.Santa Rosa, CA 954051164816252
Common questions
What is Gregory Neill Sacher, MD's NPI number?
Gregory Neill Sacher, MD's National Provider Identifier (NPI) is 1972682011, issued on Nov 2, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Gregory Neill Sacher, MD located?
The NPPES record lists a practice address at 500 Doyle Park Dr, Santa Rosa, CA, 95405. Phone: (707) 303-1719. Providers update this record themselves, so call before visiting.
How can I verify Gregory Neill Sacher, MD's license?
NPPES lists California license number A68058, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Gregory Neill Sacher, MD prescribe under Medicare Part D?
In 2024, Gregory Neill Sacher, MD had 29 Medicare Part D claims for 13 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.