Jerasimos Ballas, M.D.
Maternal & Fetal Medicine Physician · San Diego, CA
Jerasimos Ballas, M.D. is a maternal & fetal medicine physician with a practice address in San Diego, California, and NPI 1871767384, issued on Apr 15, 2008. Check the license (California A112607, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Jerasimos Ballas
- Credential
- M.D.
- Primary taxonomy
- Maternal & Fetal Medicine Physician 207VM0101X
- License number
- A112607 CA
Self-reported in NPPES; status is on the state search - Practice location
- 200 W Arbor Dr, San Diego, CA 92103
- Phone
- (858) 249-1205
- Enumerated
- Apr 15, 2008
- Record last updated
- Oct 1, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (858) 657-7212
- Medicare enrollment
- Enrolled (PECOS I20100920000042); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest maternal & fetal medicine physician records → All 343 in California → Look up another NPI →
Also registered at 200 W Arbor Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Geraldine Abcede, RNCertified Registered Nurse Anesthetist1982384046
- Joseph Abdelmalek, M.DNephrology Physician1740485531
- Kristy AbelCertified Registered Nurse Anesthetist1962113035
- Paula Abeleda, NPFamily Nurse Practitioner1558945022
Verify Jerasimos Ballas in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A112607Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
56% fewer Medicare Part D claims than the average maternal & fetal medicine physician in 2024
18 Medicare Part D claims, against an average of 41 among the 353 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 84.3 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Regents OF The University OF CaliforniaSan Diego, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Jerasimos Ballas among 343 maternal & fetal medicine physician records in California
Jerasimos Ballas, M.D. is one of 343 maternal & fetal medicine physician records with a practice address in California. 61% 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 63% of them.
- NPI issued2008 · 63% of these records are older, 31% newer
- In a Medicare fileYes · 61% of these records are
- In the CMS Doctors and Clinicians fileYes · 53% of these records are
- Graduated2006 · median 2003 among the 181 with a school on file
- Record last updated2021 · 51% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207VM0101X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Maternal & Fetal Medicine Physician providers in California
There are 343 maternal & fetal medicine physician records in California.
All 343 in California → Every provider in San Diego → Maternal & Fetal Medicine Physician nationwide →
The 8 maternal & fetal medicine physician records with the nearest ZIP codes
- Homer Chin, M.D.San Diego, CA 921031649205345
- Cynthia Gyamfi Bannerman, M.D.San Diego, CA 921031568494250
- Thomas Kelly, M.D.San Diego, CA 921031336203496
- Chia-Ling Nhan-Chang, M.D.San Diego, CA 921031265686794
- Gladys Ramos, M.D.San Diego, CA 921031710041736
- David Schrimmer, MDSan Diego, CA 921031861578833
- Steven Thomas, MDSan Diego, CA 921031639242589
- Michelle Nguyen, MDSan Diego, CA 921111104364017
Common questions
What is Jerasimos Ballas, M.D.'s NPI number?
Jerasimos Ballas, M.D.'s National Provider Identifier (NPI) is 1871767384, issued on Apr 15, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Jerasimos Ballas, M.D. located?
The NPPES record lists a practice address at 200 W Arbor Dr, San Diego, CA, 92103. Phone: (858) 249-1205. Providers update this record themselves, so call before visiting.
How can I verify Jerasimos Ballas, M.D.'s license?
NPPES lists California license number A112607, 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 Jerasimos Ballas, M.D. prescribe under Medicare Part D?
In 2024, Jerasimos Ballas, M.D. had 18 Medicare Part D claims; the average among maternal & fetal medicine physician prescribers was 41. Part D covers Medicare prescriptions only.
What is Jerasimos Ballas, M.D.'s MIPS final score?
The 2023 MIPS final score is 84.3 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.