James R. Ziegenbein, M.D. A PROF CORP
Infectious Disease Physician · Downey, CA
James R. Ziegenbein, M.D. A PROF CORP is an infectious disease physician with a practice address in Downey, California, and NPI 1447278072, issued on Jul 18, 2006. Check the license (California G68469, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- James R. Ziegenbein
- Credential
- M.D. A PROF CORP
- Primary taxonomy
- Infectious Disease Physician 207RI0200X
- License number
- G68469 CA
Self-reported in NPPES; status is on the state search - Practice location
- 8301 Florence Ave, Downey, CA 90240
- Phone
- (562) 862-0604
- Enumerated
- Jul 18, 2006
- Record last updated
- Apr 29, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (562) 795-0676
- Medicaid ID
- 00G684690 CA
- Medicare enrollment
- Enrolled (PECOS I20110204000441); accepts Medicare assignment
- Medical or professional school
- University Of California, Irvine, California College Of Medicine, 1988
- Entity
- Type 1 · individual
8 nearest infectious disease physician records → All 1,119 in California → Look up another NPI →
Also registered at 8301 Florence Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Robert Lark, PH.DMarriage & Family Therapist1083644835
- Marilou Lucero, M.D.Family Medicine Physician1861523052
- Joel Sunkin, PH.D.Clinical Psychologist1891785721
Verify James R. Ziegenbein in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G68469Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
96% fewer Medicare Part D claims than the average infectious disease physician in 2024
26 Medicare Part D claims for 13 beneficiaries, against an average of 689 among the 7,388 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Ceftriaxone11 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: $13.98
1 payment: food and beverage; the largest payer was Paratek Pharmaceuticals, Inc. The 3,895 providers of this specialty with any payment received $4,362.19 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.
James R. Ziegenbein among 1,119 infectious disease physician records in California
James R. Ziegenbein, M.D. A PROF CORP is one of 1,119 infectious disease physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 4% of them.
- NPI issued2006 · 4% of these records are older, 54% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated1988 · median 2003 among the 735 with a school on file
- Record last updated2015 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RI0200X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Infectious Disease Physician providers in California
There are 1,119 infectious disease physician records in California.
All 1,119 in California → Every provider in Downey → Infectious Disease Physician nationwide →
The 8 infectious disease physician records with the nearest ZIP codes
- Sandeep Bansil, M.D.Downey, CA 902411184799124
- Lisa Chiang, M.D.Downey, CA 902421215097076
- Michelle Lebrun, M.D.Downey, CA 902421215311634
- Daniel Ehrensaft, MDCulver City, CA 902321184729352
- Isam Mawas, MDCulver City, CA 902321790971422
- Martha Sonnenberg, MDCulver City, CA 902321356483101
- Maita Kuvhenguhwa, M.D.Compton, CA 902221467795203
- Hugh Fulmer, MDLynwood, CA 902621073689832
Common questions
What is James R. Ziegenbein, M.D. A PROF CORP's NPI number?
James R. Ziegenbein, M.D. A PROF CORP's National Provider Identifier (NPI) is 1447278072, issued on Jul 18, 2006. An NPI identifies a provider in billing; it is not a license.
Where is James R. Ziegenbein, M.D. A PROF CORP located?
The NPPES record lists a practice address at 8301 Florence Ave, Downey, CA, 90240. Phone: (562) 862-0604. Providers update this record themselves, so call before visiting.
How can I verify James R. Ziegenbein, M.D. A PROF CORP's license?
NPPES lists California license number G68469, 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 James R. Ziegenbein, M.D. A PROF CORP prescribe under Medicare Part D?
In 2024, James R. Ziegenbein, M.D. A PROF CORP had 26 Medicare Part D claims for 13 beneficiaries; the average among infectious disease physician prescribers was 689. 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.