Paul Nathan Gailiunas, M.D.
Family Medicine Physician · Pasadena, CA
Paul Nathan Gailiunas, M.D. is a family medicine physician with a practice address in Pasadena, California, and NPI 1831174184, issued on Dec 9, 2005. Check the license (California A103027, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Paul Nathan Gailiunas
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License numbers
- A103027 CA
28465 SC
Self-reported in NPPES; status is on the state search - Practice location
- 1800 N Lake Ave, Pasadena, CA 91104
- Phone
- (626) 398-6300
- Enumerated
- Dec 9, 2005
- Record last updated
- Nov 22, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (626) 204-0086
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 1800 N Lake Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Bani Chaudhary, PA-CPhysician Assistant1154844819
- Ruth Landsberger, MDFamily Medicine Physician1629120001
- Mischelle Turner, PA-CMedical Physician Assistant1700096468
Verify Paul Nathan Gailiunas in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A103027Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
31% fewer Medicare Part D claims than the average family medicine physician in 2024
2,462 Medicare Part D claims for 145 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 17% of claims.
Most prescribed
- Atorvastatin Calcium179 claims
- Metformin Hcl116 claims
- Losartan Potassium103 claims
- Amlodipine Besylate94 claims
- Lisinopril92 claims
- Omeprazole81 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.
Paul Nathan Gailiunas among 17,133 family medicine physician records in California
Paul Nathan Gailiunas, M.D. is one of 17,133 family medicine physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 94% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileNo · 62% of these records are
- Record last updated2011 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Family Medicine Physician providers in California
There are 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Pasadena → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Daniel Brousseau, D.O.Pasadena, CA 911041841385457
- Johnathan ChePasadena, CA 911041982373015
- Ruth Landsberger, MDPasadena, CA 911041629120001
- Peter Liepmann, MDPasadena, CA 911041568415701
- Annie Barseghian, MDPasadena, CA 911051134226855
- Resa Caivano, M.D.Pasadena, CA 911031780748624
- Gustavo Calleros, MDPasadena, CA 911051346358827
- Lorence Eshoe, MDPasadena, CA 911051487656807
Common questions
What is Paul Nathan Gailiunas, M.D.'s NPI number?
Paul Nathan Gailiunas, M.D.'s National Provider Identifier (NPI) is 1831174184, issued on Dec 9, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Paul Nathan Gailiunas, M.D. located?
The NPPES record lists a practice address at 1800 N Lake Ave, Pasadena, CA, 91104. Phone: (626) 398-6300. Providers update this record themselves, so call before visiting.
How can I verify Paul Nathan Gailiunas, M.D.'s license?
NPPES lists California license number A103027, 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 Paul Nathan Gailiunas, M.D. prescribe under Medicare Part D?
In 2024, Paul Nathan Gailiunas, M.D. had 2,462 Medicare Part D claims for 145 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.