Fritz J. Baumgartner, MD
Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician · Los Alamitos, CA
Fritz J. Baumgartner, MD is a thoracic surgery (cardiothoracic vascular surgery) physician with a practice address in Los Alamitos, California, and NPI 1134237761, issued on Aug 25, 2006. Check the license (California G55475, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Fritz J. Baumgartner
- Credential
- MD
- Primary taxonomy
- Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician 208G00000X
- License number
- G55475 CA
Self-reported in NPPES; status is on the state search - Practice location
- 3791 Katella Ave #201, Los Alamitos, CA 90720
- Phone
- (562) 596-6736
- Enumerated
- Aug 25, 2006
- Record last updated
- Dec 4, 2009 (not updated in 17 years: call before relying on the address or phone)
- Fax
- (562) 596-5387
- Medicaid ID
- 00G554750 CA
- Entity
- Type 1 · individual
8 nearest thoracic surgery (cardiothoracic vascular surgery) physician records → All 634 in California → Look up another NPI →
Verify Fritz J. Baumgartner in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G55475Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 91.9 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: $196.86
6 payments; by number, the most common kind was food and beverage; the largest payer was Urgo Medical North America, LLC. The 4,047 providers of this specialty with any payment received $7,828.84 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.
Fritz J. Baumgartner among 634 thoracic surgery (cardiothoracic vascular surgery) physician records in California
Fritz J. Baumgartner, MD is one of 634 thoracic surgery (cardiothoracic vascular surgery) physician records with a practice address in California. 75% 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 10% of them.
- NPI issued2006 · 10% of these records are older, 45% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileNo · 64% of these records are
- Record last updated2009 · 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 208G00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician providers in California
There are 634 thoracic surgery (cardiothoracic vascular surgery) physician records in California.
All 634 in California → Every provider in Los Alamitos → Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician nationwide →
The 8 thoracic surgery (cardiothoracic vascular surgery) physician records with the nearest ZIP codes
- George Panagiotides, M.D., F.A.C.S.Lakewood, CA 907121952317745
- Rose Wong, MDBellflower, CA 907061073684973
- Guy Lemire, M.D.Long Beach, CA 908031689632614
- Daniel Bethencourt, M.D.Long Beach, CA 908061437163904
- Ryan Chiu, M.D.Long Beach, CA 908061306107743
- Jamie Eridon, M.D.Long Beach, CA 908061225329840
- Oluwatomisin ObafemiLong Beach, CA 908061841796976
- Matthew Stanley, M.D.Long Beach, CA 908061730507856
Common questions
What is Fritz J. Baumgartner, MD's NPI number?
Fritz J. Baumgartner, MD's National Provider Identifier (NPI) is 1134237761, issued on Aug 25, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Fritz J. Baumgartner, MD located?
The NPPES record lists a practice address at 3791 Katella Ave #201, Los Alamitos, CA, 90720. Phone: (562) 596-6736. Providers update this record themselves, so call before visiting.
How can I verify Fritz J. Baumgartner, MD's license?
NPPES lists California license number G55475, 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.
What is Fritz J. Baumgartner, MD's MIPS final score?
The 2023 MIPS final score is 91.9 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.