Mary Loraine Sullivan, MD
Obstetrics & Gynecology Physician · El Cajon, CA
Mary Loraine Sullivan, MD is an obstetrics & gynecology physician with a practice address in El Cajon, California, and NPI 1588893564, issued on Jul 10, 2009. Check the license (California 132556, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Mary Loraine Sullivan
- Credential
- MD
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- 132556 CA
Self-reported in NPPES; status is on the state search - Practice location
- 133 W Main St # 240, El Cajon, CA 92020
- Phone
- (619) 401-0404
- Enumerated
- Jul 10, 2009
- Record last updated
- Apr 2, 2018 (not updated in 8 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20130802000449); accepts Medicare assignment
- Medical or professional school
- Texas Tech University Health Science Center School Of Medicine, 2009
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 5,088 in California → Look up another NPI →
Verify Mary Loraine Sullivan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 132556Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
65% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024
57 Medicare Part D claims for 23 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.
Bills Medicare through one group practice
- Neighborhood HealthcareEscondido, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mary Loraine Sullivan among 5,088 obstetrics & gynecology physician records in California
Mary Loraine Sullivan, 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 2009, is newer than 66% of them.
- NPI issued2009 · 66% of these records are older, 30% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 53% of these records are
- Graduated2009 · median 2004 among the 2,700 with a school on file
- Record last updated2018 · 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 El Cajon → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Ayser Al-Mshhdani, MDEl Cajon, CA 920201679008569
- Marissa Brown, M.D.El Cajon, CA 920201457616997
- Edgar Bulloch, MDEl Cajon, CA 920201508046376
- Niloufer Dennis, M.D.El Cajon, CA 920201124217690
- Aliya Khan, MDEl Cajon, CA 920211285687350
- Katherine Austin, M.D.Encinitas, CA 920241003891482
- Robert Biter, M.D.Encinitas, CA 920241932169661
- Einat Duhamel, M.D.Encinitas, CA 920241114955119
Common questions
What is Mary Loraine Sullivan, MD's NPI number?
Mary Loraine Sullivan, MD's National Provider Identifier (NPI) is 1588893564, issued on Jul 10, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Mary Loraine Sullivan, MD located?
The NPPES record lists a practice address at 133 W Main St # 240, El Cajon, CA, 92020. Phone: (619) 401-0404. Providers update this record themselves, so call before visiting.
How can I verify Mary Loraine Sullivan, MD's license?
NPPES lists California license number 132556, 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 Mary Loraine Sullivan, MD prescribe under Medicare Part D?
In 2024, Mary Loraine Sullivan, MD had 57 Medicare Part D claims for 23 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.