Erika Balassiano, MD
Obstetrics & Gynecology Physician · Palo Alto, CA
Erika Balassiano, MD is an obstetrics & gynecology physician with a practice address in Palo Alto, California, and NPI 1558599928, issued on Jun 24, 2009. Check the license (California A124829, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Erika Balassiano
- Credential
- MD
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- A124829 CA
Self-reported in NPPES; status is on the state search - Practice location
- 900 Welch RD, Palo Alto, CA 94304
- Phone
- (650) 327-8778
- Enumerated
- Jun 24, 2009
- Record last updated
- Jul 1, 2013 (not updated in 13 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20220519001756); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 5,088 in California → Look up another NPI →
Also registered at 900 Welch RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Erika Balassiano in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A124829Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
93% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024
11 Medicare Part D claims, 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.
Industry payments in 2024: $167.73
8 payments; by number, the most common kind was food and beverage; the largest payer was Mayne Pharma Commercial LLC. The 21,429 providers of this specialty with any payment received $1,030.61 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
- Doctor Azad Medical CorporationMountain View, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Erika Balassiano among 5,088 obstetrics & gynecology physician records in California
Erika Balassiano, 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
- Graduated2008 · median 2004 among the 2,700 with a school on file
- Record last updated2013 · 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 Palo Alto → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Alireza Abdollah Shamshirsaz, M.D.Palo Alto, CA 943041881804235
- Virginia Chan, D.O.Palo Alto, CA 943041134329972
- Edward Cohen, MDPalo Alto, CA 943041003838541
- Lisa Goldthwaite, M.D.Palo Alto, CA 943041457594244
- Betty Kung, MDPalo Alto, CA 943041972675700
- Kathryn Lannin, MDPalo Alto, CA 943041508951583
- Madeleine Lemyre, M.D.Palo Alto, CA 943041831389097
- Nancy Mason, MDPalo Alto, CA 943041649312067
Common questions
What is Erika Balassiano, MD's NPI number?
Erika Balassiano, MD's National Provider Identifier (NPI) is 1558599928, issued on Jun 24, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Erika Balassiano, MD located?
The NPPES record lists a practice address at 900 Welch RD, Palo Alto, CA, 94304. Phone: (650) 327-8778. Providers update this record themselves, so call before visiting.
How can I verify Erika Balassiano, MD's license?
NPPES lists California license number A124829, 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 Erika Balassiano, MD prescribe under Medicare Part D?
In 2024, Erika Balassiano, MD had 11 Medicare Part D claims; 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.