Mark Elliott Eastman, D.O.
Obstetrics & Gynecology Physician · Jackson, CA
Mark Elliott Eastman, D.O. is an obstetrics & gynecology physician with a practice address in Jackson, California, and NPI 1538250899, issued on Sep 28, 2006. Check the license (California 20A7345, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Mark Elliott Eastman
- Credential
- D.O.
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- 20A7345 CA
Self-reported in NPPES; status is on the state search - Practice location
- 235 New York Ranch RD, Jackson, CA 95642
- Phone
- (209) 257-1057
- Enumerated
- Sep 28, 2006
- Record last updated
- Sep 7, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (209) 257-1058
- Medicare enrollment
- Enrolled (PECOS I20050506000304); accepts Medicare assignment
- Medical or professional school
- College Of Osteo Med Of The Pacific At Pomona, 1993
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 5,088 in California → Look up another NPI →
Also registered at 235 New York Ranch RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Geraldine O'Shea, DOInternal Medicine Physician1013910140
Verify Mark Elliott Eastman in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A7345Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
7.4 times the Medicare Part D claims of the average obstetrics & gynecology physician in 2024
1,223 Medicare Part D claims for 94 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. 105 claims were for opioids.
Most prescribed
- Rosuvastatin Calcium141 claims
- Amlodipine Besylate60 claims
- Hydrocodone-Acetaminophen53 claims
- Levothyroxine Sodium52 claims
- Lisinopril45 claims
- Atorvastatin Calcium32 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.
Mark Elliott Eastman among 5,088 obstetrics & gynecology physician records in California
Mark Elliott Eastman, D.O. 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
- Graduated1993 · median 2004 among the 2,700 with a school on file
- Record last updated2012 · 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 Jackson → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Robert Young, M.D.Jackson, CA 956421790777662
- Arnold Zeiderman, M.D.Jackson, CA 956421306884788
- Heather Catich, MDLincoln, CA 956481437223039
- Steven Katsuyama, MDLincoln, CA 956481861570343
- Kelly Robinson, MDLincoln, CA 956481871671446
- Matthew Van Der Veen, MDLincoln, CA 956481053499632
- Molly Campbell, M.D.Galt, CA 956321447652524
- Scott Gale, M.D.McClellan, CA 956521144206616
Common questions
What is Mark Elliott Eastman, D.O.'s NPI number?
Mark Elliott Eastman, D.O.'s National Provider Identifier (NPI) is 1538250899, issued on Sep 28, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mark Elliott Eastman, D.O. located?
The NPPES record lists a practice address at 235 New York Ranch RD, Jackson, CA, 95642. Phone: (209) 257-1057. Providers update this record themselves, so call before visiting.
How can I verify Mark Elliott Eastman, D.O.'s license?
NPPES lists California license number 20A7345, 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 Mark Elliott Eastman, D.O. prescribe under Medicare Part D?
In 2024, Mark Elliott Eastman, D.O. had 1,223 Medicare Part D claims for 94 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.