Christian A. Balzer, M.D.
Internal Medicine Physician · Walnut Creek, CA
Christian A. Balzer, M.D. is an internal medicine physician with a practice address in Walnut Creek, California, and NPI 1518104892, issued on Jan 8, 2009. Check the license (California A 112433, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Christian A. Balzer
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A 112433 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1220 Rossmoor Pkwy, Walnut Creek, CA 94595
- Phone
- (925) 947-3393
- Enumerated
- Jan 8, 2009
- Record last updated
- Dec 27, 2019 (not updated in 7 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20110725000695); accepts Medicare assignment
- Medical or professional school
- University Of Missouri, Columbia School Of Medicine, 2008
- Entity
- Type 1 · individual
Also registered at 1220 Rossmoor Pkwy
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Christian A. Balzer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A 112433Check 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 internal medicine physician in 2024
235 Medicare Part D claims for 90 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 15 claims were for opioids.
Most prescribed
- Cefpodoxime Proxetil17 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): 85.7 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).
Industry payments in 2024: $32.34
1 payment: food and beverage; the largest payer was GlaxoSmithKline, LLC. The 50,334 providers of this specialty with any payment received $1,303.06 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
- John Muir Physician NetworkConcord, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
183 internal medicine physician records list a practice address in Walnut Creek
They are 183 of the 6,170 NPPES records with a practice address in Walnut Creek, and 17,696 internal medicine physician records in California.
All 183 in Walnut Creek → All 17,696 in California → Every provider in Walnut Creek →
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- Alexander Abary, MDLong Beach, CA1104995919
- Luba Abascal, MDSan Francisco, CA1023180874
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Common questions
What is Christian A. Balzer, M.D.'s NPI number?
Christian A. Balzer, M.D.'s National Provider Identifier (NPI) is 1518104892, issued on Jan 8, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Christian A. Balzer, M.D. located?
The NPPES record lists a practice address at 1220 Rossmoor Pkwy, Walnut Creek, CA, 94595. Phone: (925) 947-3393. Providers update this record themselves, so call before visiting.
How can I verify Christian A. Balzer, M.D.'s license?
NPPES lists California license number A 112433, 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 Christian A. Balzer, M.D. prescribe under Medicare Part D?
In 2024, Christian A. Balzer, M.D. had 235 Medicare Part D claims for 90 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Christian A. Balzer, M.D.'s MIPS final score?
The 2023 MIPS final score is 85.7 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.