Bonnie L. Balzer, MD
Clinical Pathology/Laboratory Medicine Physician · West Hollywood, CA
Bonnie L. Balzer, MD is a clinical pathology/laboratory medicine physician with a practice address in West Hollywood, California, and NPI 1649247602, issued on Mar 8, 2006. Check the license (California A78681, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Bonnie L. Balzer
- Credential
- MD
- Primary taxonomy
- Clinical Pathology/Laboratory Medicine Physician 207ZP0105X
- License number
- A78681 CA
Self-reported in NPPES; status is on the state search - Practice location
- 8700 Beverly Blvd, West Hollywood, CA 90048
- Phone
- (310) 423-6623
- Enumerated
- Mar 8, 2006
- Record last updated
- Jul 6, 2026
- Medicare enrollment
- Enrolled (PECOS I20060329000241); accepts Medicare assignment
- Medical or professional school
- Stanford University School Of Medicine, 2000
- Entity
- Type 1 · individual
8 nearest clinical pathology/laboratory medicine physician records → All 131 in California → Look up another NPI →
Also registered at 8700 Beverly Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Bonnie L. Balzer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A78681Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
62% fewer Medicare Part D claims than the average clinical pathology/laboratory medicine physician in 2024
13 Medicare Part D claims, against an average of 34 among the 37 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 63.5 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
- Cedars-Sinai Medical Care FoundationIrvine, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Bonnie L. Balzer among 131 clinical pathology/laboratory medicine physician records in California
Bonnie L. Balzer, MD is one of 131 clinical pathology/laboratory medicine physician records with a practice address in California. 36% 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 under 1% of them.
- NPI issued2006 · under 1% of these records are older, 55% newer
- In a Medicare fileYes · 36% of these records are
- In the CMS Doctors and Clinicians fileYes · 31% of these records are
- Graduated2000 · median 1998 among the 40 with a school on file
- Record last updated2026 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207ZP0105X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Clinical Pathology/Laboratory Medicine Physician providers in California
There are 131 clinical pathology/laboratory medicine physician records in California.
All 131 in California → Every provider in West Hollywood → Clinical Pathology/Laboratory Medicine Physician nationwide →
The 8 clinical pathology/laboratory medicine physician records with the nearest ZIP codes
- Stuart Dubin, M.DWest Hollywood, CA 900481649302902
- David Engman, MDWest Hollywood, CA 900481891721098
- David Gibb, M.D., PH.D.West Hollywood, CA 900481487912499
- Jennifer Lee, MDWest Hollywood, CA 900481467081844
- Joseph LownikWest Hollywood, CA 900481982453338
- Hedyeh Shafi, M.D.West Hollywood, CA 900481487963690
- Sukantha Chandrasekaran, PHD, D(ABMM)Los Angeles, CA 900491437019171
- Kingshuk Das, M.D.Los Angeles, CA 900491215016472
Common questions
What is Bonnie L. Balzer, MD's NPI number?
Bonnie L. Balzer, MD's National Provider Identifier (NPI) is 1649247602, issued on Mar 8, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Bonnie L. Balzer, MD located?
The NPPES record lists a practice address at 8700 Beverly Blvd, West Hollywood, CA, 90048. Phone: (310) 423-6623. Providers update this record themselves, so call before visiting.
How can I verify Bonnie L. Balzer, MD's license?
NPPES lists California license number A78681, 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 Bonnie L. Balzer, MD prescribe under Medicare Part D?
In 2024, Bonnie L. Balzer, MD had 13 Medicare Part D claims; the average among clinical pathology/laboratory medicine physician prescribers was 34. Part D covers Medicare prescriptions only.
What is Bonnie L. Balzer, MD's MIPS final score?
The 2023 MIPS final score is 63.5 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.