Mariam Philip Korah, MD
Radiation Oncology Physician · Antioch, CA
Mariam Philip Korah, MD is a radiation oncology physician with a practice address in Antioch, California, and NPI 1083891543, issued on Jan 28, 2008. Check the license on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Mariam Philip Korah
- Credential
- MD
- Primary taxonomy
- Radiation Oncology Physician 2085R0001X
- License number
- 001392 GA
Self-reported in NPPES; status is on the state search - Practice location
- 4721 Dallas Ranch RD, Antioch, CA 94531
- Phone
- (925) 778-0679
- Enumerated
- Jan 28, 2008
- Record last updated
- Jul 23, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (925) 778-3567
- Medicare enrollment
- Enrolled (PECOS I20130712000673); accepts Medicare assignment
- Medical or professional school
- University Of Florida College Of Medicine, 2005
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest radiation oncology physician records → All 735 in California → Look up another NPI →
Also registered at 4721 Dallas Ranch RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Zahora Ally, MDRadiation Oncology Physician1306839915
- Joseph Beck, M.D.Radiation Oncology Physician1740206085
- Susan Bucker, LCSWClinical Social Worker1588935050
- Jiyon Choi, MDHematology & Oncology Physician1144437567
- Tuan Pham, PHARMDPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1588369342
- Prasad Pillai, MDHematology & Oncology Physician1023174380
Verify Mariam Philip Korah in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of CaliforniaCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
44% fewer Medicare Part D claims than the average radiation oncology physician in 2024
75 Medicare Part D claims for 39 beneficiaries, against an average of 134 among the 4,851 providers of this specialty who prescribed in Part D. Brand-name drugs were 19% of claims.
Most prescribed
- Tamsulosin Hcl15 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.
Industry payments in 2024: $2,232.32
77 payments; by number, the most common kind was food and beverage; the largest payer was Merck Sharp & Dohme LLC. The 3,275 providers of this specialty with any payment received $1,897.85 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 one group practice
- Epic CareAntioch, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mariam Philip Korah among 735 radiation oncology physician records in California
Mariam Philip Korah, MD is one of 735 radiation oncology physician records with a practice address in California. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 57% of them.
- NPI issued2008 · 57% of these records are older, 38% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 74% of these records are
- Graduated2005 · median 2005 among the 545 with a school on file
- Record last updated2014 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0001X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Radiation Oncology Physician providers in California
There are 735 radiation oncology physician records in California.
All 735 in California → Every provider in Antioch → Radiation Oncology Physician nationwide →
The 8 radiation oncology physician records with the nearest ZIP codes
- Zahora Ally, MDAntioch, CA 945311306839915
- Joseph Beck, M.D.Antioch, CA 945311740206085
- David Eastham, MD, MPHTravis Afb, CA 945351356412050
- Winnifred Wong, DOTravis Afb, CA 945351144554148
- Sravana Chennupati, MDPleasant Hill, CA 945231609193226
- Christine Chung, M.D.Pleasant Hill, CA 945231346438256
- Sophia Rahman, M.D.Pleasant Hill, CA 945231831266741
- Loan Tran, MDPleasant Hill, CA 945231043292410
Common questions
What is Mariam Philip Korah, MD's NPI number?
Mariam Philip Korah, MD's National Provider Identifier (NPI) is 1083891543, issued on Jan 28, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Mariam Philip Korah, MD located?
The NPPES record lists a practice address at 4721 Dallas Ranch RD, Antioch, CA, 94531. Phone: (925) 778-0679. Providers update this record themselves, so call before visiting.
How can I verify Mariam Philip Korah, MD's license?
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 Mariam Philip Korah, MD prescribe under Medicare Part D?
In 2024, Mariam Philip Korah, MD had 75 Medicare Part D claims for 39 beneficiaries; the average among radiation oncology physician prescribers was 134. 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.