Maria C. Sipowicz, MD
Family Medicine Physician · Anaheim, CA
Maria C. Sipowicz, MD is a family medicine physician with a practice address in Anaheim, California, and NPI 1902954928, issued on Jan 8, 2007. Check the license (California A80227, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Maria C. Sipowicz
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- A80227 CA
Self-reported in NPPES; status is on the state search - Practice location
- 441 N Lakeview Ave, Anaheim, CA 92807
- Phone
- (888) 988-2800
- Enumerated
- Jan 8, 2007
- Record last updated
- Sep 15, 2008 (not updated in 18 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
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A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Maria C. Sipowicz in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A80227Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average family medicine physician in 2024
43 Medicare Part D claims for 29 beneficiaries, against an average of 3,544 among the 117,163 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.
Maria C. Sipowicz among 17,133 family medicine physician records in California
Maria C. Sipowicz, MD is one of 17,133 family medicine physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 41% of them.
- NPI issued2007 · 41% of these records are older, 47% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileNo · 62% of these records are
- Record last updated2008 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
234 family medicine physician records list a practice address in Anaheim
They are 234 of the 9,018 NPPES records with a practice address in Anaheim, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Anaheim → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Mary Berry, D.O.Anaheim Hills, CA 928071568449783
- Martin Blanco-Eccleston, M.D.Anaheim, CA 928071164520326
- Christopher Celio, MDAnaheim, CA 928071538245279
- Kara Cummins, MDAnaheim, CA 928071740399534
- Jeffrey Donath, MDAnaheim, CA 928071336210376
- Alan Evans, MDAnaheim, CA 928071346311388
- Kimberly Fodran, M.D.Anaheim, CA 928071114034055
- Nicole Garcia, M.D.Anaheim, CA 928071437145505
Common questions
What is Maria C. Sipowicz, MD's NPI number?
Maria C. Sipowicz, MD's National Provider Identifier (NPI) is 1902954928, issued on Jan 8, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Maria C. Sipowicz, MD located?
The NPPES record lists a practice address at 441 N Lakeview Ave, Anaheim, CA, 92807. Phone: (888) 988-2800. Providers update this record themselves, so call before visiting.
How can I verify Maria C. Sipowicz, MD's license?
NPPES lists California license number A80227, 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 Maria C. Sipowicz, MD prescribe under Medicare Part D?
In 2024, Maria C. Sipowicz, MD had 43 Medicare Part D claims for 29 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.