Christina Greig, MD
Family Medicine Physician · Fairfield, CA
Christina Greig, MD is a family medicine physician with a practice address in Fairfield, California, and NPI 1467799502, issued on Jan 9, 2013. Check the license (California A138223, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Christina Greig
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- A138223 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2201 Courage Dr, Fairfield, CA 94533
- Phone
- (707) 784-2010
- Enumerated
- Jan 9, 2013
- Entity
- Type 1 · individual
Also registered at 2201 Courage Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Sumera Ahmed, MDInternal Medicine Physician1134180219
- Lianna AlbertCounselor1396230678
- Ofelia Alota, M.D.Pediatrics Physician1528022456
- Maryanne Cleary, LCSWClinical Social Worker1700946704
- Elizabeth Coudright, LCSWClinical Social Worker1467849554
- Kelly Doyle-Matta, PA-CMedical Physician Assistant1598952335
Verify Christina Greig in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A138223Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
54% fewer Medicare Part D claims than the average family medicine physician in 2024
1,602 Medicare Part D claims for 144 beneficiaries, against an average of 3,519 among the 111,126 providers of this specialty who prescribed in Part D. 73 claims were for opioids.
Most prescribed
- Atorvastatin Calcium186 claims
- Losartan Potassium87 claims
- Amlodipine Besylate84 claims
- Levothyroxine Sodium66 claims
- Lisinopril56 claims
- Hydrochlorothiazide47 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: $372.64
11 payments, mostly food and beverage; the largest payer was Indivior Inc.. The 53,013 providers of this specialty with any payment received $861.30 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.
65 family medicine physician records list a Fairfield practice address
They are 65 of the 3,595 NPPES records with a Fairfield practice address, and 16,272 family medicine physician records in California.
All 65 in Fairfield → All 16,272 in California → Every provider in Fairfield →
Other family medicine physician records in California
- Omer Aba-Omer, MDSanta Monica, CA1649702093
- Michelle Ababa, MDWilmington, CA1710922513
- Anna Tzeitel Abalos, MDRoseville, CA1720200017
- Adan Abarca, MDAnaheim, CA1760553689
- Vanessa Abarca, DOVentura, CA1952040859
- Lorraine Abate, M.D.Sacramento, CA1104840008
- Robert Abatecola, MDCastro Valley, CA1669551719
- Romeo Abaya, M.D.Cottonwood, CA1598053506
- Effiem Abbah, MD, MPHSan Francisco, CA1821185133
- Khuzeman Abbasi, MDSanta Rosa, CA1841979952
Common questions
What is Christina Greig, MD's NPI number?
Christina Greig, MD's National Provider Identifier (NPI) is 1467799502, issued on Jan 9, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Christina Greig, MD located?
The NPPES record lists a practice address at 2201 Courage Dr, Fairfield, CA, 94533. Phone: (707) 784-2010. Providers update this record themselves, so call before visiting.
How can I verify Christina Greig, MD's license?
NPPES lists California license number A138223, 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 Christina Greig, MD prescribe under Medicare Part D?
In 2024, Christina Greig, MD had 1,602 Medicare Part D claims for 144 beneficiaries; the average among family medicine physician prescribers was 3,519. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.