Karen Kolba, MD
Rheumatology Physician · Santa Maria, CA
Karen Kolba, MD is a rheumatology physician with a practice address in Santa Maria, California, and NPI 1710978713, issued on Oct 31, 2005. Check the license (California G59530, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Karen Kolba
- Credential
- MD
- Primary taxonomy
- Rheumatology Physician 207RR0500X
- License number
- G59530 CA
Self-reported in NPPES; status is on the state search - Practice location
- 607 E Plaza Dr, Santa Maria, CA 93454
- Phone
- (805) 925-8899
- Enumerated
- Oct 31, 2005
- Entity
- Type 1 · individual
Verify Karen Kolba in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G59530Check 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 rheumatology physician in 2024
17 Medicare Part D claims, against an average of 2,058 among the 4,833 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.
Rheumatology Physician providers in California
There are 719 rheumatology physician records in California.
Other rheumatology physician records in California
- Thomas Abel, MDMonte Sereno, CA1871679399
- Thomas Adamson, M.D.San Diego, CA1639187057
- Sana Afroz, MDMoreno Valley, CA1356724074
- Atul Agrawal, MDAntioch, CA1528146016
- Bikramjit Ahluwalia, MDApple Valley, CA1669402467
- Shirin Ahmad, MDFolsom, CA1932182318
- Basma Al Nahlawi, M.D.San Marcos, CA1144455262
- Phillip Aleksiejuk, MDWoodland Hills, CA1063844579
- Stanley Alexander, MDArcadia, CA1497814685
- Edward Amento, M.D.Sunnyvale, CA1457896961
Common questions
What is Karen Kolba, MD's NPI number?
Karen Kolba, MD's National Provider Identifier (NPI) is 1710978713, issued on Oct 31, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Karen Kolba, MD located?
The NPPES record lists a practice address at 607 E Plaza Dr, Santa Maria, CA, 93454. Phone: (805) 925-8899. Providers update this record themselves, so call before visiting.
How can I verify Karen Kolba, MD's license?
NPPES lists California license number G59530, 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 Karen Kolba, MD prescribe under Medicare Part D?
In 2024, Karen Kolba, MD had 17 Medicare Part D claims; the average among rheumatology physician prescribers was 2,058. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.