Esther Margaret Molnar, MD
Infectious Disease Physician · Walnut Creek, CA
Esther Margaret Molnar, MD is an infectious disease physician with a practice address in Walnut Creek, California, and NPI 1831456896, issued on Apr 16, 2012. Check the license (California A147419, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Esther Margaret Molnar
- Credential
- MD
- Primary taxonomy
- Infectious Disease Physician 207RI0200X
- License number
- A147419 CA
Self-reported in NPPES; status is on the state search - Practice location
- 365 Lennon LN Ste 200, Walnut Creek, CA 94598
- Phone
- (925) 947-2334
- Enumerated
- Apr 16, 2012
- Record last updated
- Mar 3, 2025
- Fax
- (925) 947-5889
- Medicare enrollment
- Enrolled (PECOS I20170831002065); may accept Medicare assignment
- Medical or professional school
- George Washington University School Of Medicine, 2012
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest infectious disease physician records → All 1,119 in California → Look up another NPI →
Also registered at 365 Lennon LN Ste 200
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Timothy Jang, MDInfectious Disease Physician1801358775
- Silpa Jetty, MDInfectious Disease Physician1164050266
- Nimisha Mishra-Shukla, MDInfectious Disease Physician1487843942
- Szilvia Molitorisz, MDInfectious Disease Physician1295806289
- Maria Christina Pingol, RN, FNP-BCFamily Nurse Practitioner1235562380
- Stacy Welcome, P.A.-C.Physician Assistant1518060508
Verify Esther Margaret Molnar in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A147419Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
79% fewer Medicare Part D claims than the average infectious disease physician in 2024
148 Medicare Part D claims for 29 beneficiaries, against an average of 689 among the 7,388 providers of this specialty who prescribed in Part D. Brand-name drugs were 36% of claims.
Most prescribed
- Doxycycline Monohydrate19 claims
- Arikayce18 claims
- Tenofovir Disoproxil Fumarate16 claims
- Ertapenem14 claims
- Biktarvy12 claims
- Sirturo12 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 MIPS final score for 2023 (Medicare payment program): 88.4 of 100
The Merit-based Incentive Payment System score is reported for this clinician. 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; category weights for 2023 (qpp.cms.gov).
Bills Medicare through 2 group practices
- Bass Medical GroupAlamo, CA
- John Muir Trauma Physicians Billing ServiceWalnut Creek, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Esther Margaret Molnar among 1,119 infectious disease physician records in California
Esther Margaret Molnar, MD is one of 1,119 infectious disease physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 74% of them.
- NPI issued2012 · 74% of these records are older, 23% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2012 · median 2003 among the 735 with a school on file
- Record last updated2025 · 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 207RI0200X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Infectious Disease Physician providers in California
There are 1,119 infectious disease physician records in California.
All 1,119 in California → Every provider in Walnut Creek → Infectious Disease Physician nationwide →
The 8 infectious disease physician records with the nearest ZIP codes
- Jorge Bernett, M.D.Walnut Creek, CA 945981366460081
- Peter Binstock, M.D.Walnut Creek, CA 945981487686838
- Devin Callister, M.D.Walnut Creek, CA 945981376856757
- Jennifer Cheng, D.O.Walnut Creek, CA 945981669791612
- Bela Chheda, M.D.Walnut Creek, CA 945981790717049
- Timothy Jang, MDWalnut Creek, CA 945981801358775
- Bhavna Malik, MDWalnut Creek, CA 945981437231537
- Nimisha Mishra-Shukla, MDWalnut Creek, CA 945981487843942
Common questions
What is Esther Margaret Molnar, MD's NPI number?
Esther Margaret Molnar, MD's National Provider Identifier (NPI) is 1831456896, issued on Apr 16, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Esther Margaret Molnar, MD located?
The NPPES record lists a practice address at 365 Lennon LN Ste 200, Walnut Creek, CA, 94598. Phone: (925) 947-2334. Providers update this record themselves, so call before visiting.
How can I verify Esther Margaret Molnar, MD's license?
NPPES lists California license number A147419, 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 Esther Margaret Molnar, MD prescribe under Medicare Part D?
In 2024, Esther Margaret Molnar, MD had 148 Medicare Part D claims for 29 beneficiaries; the average among infectious disease physician prescribers was 689. Part D covers Medicare prescriptions only.
What is Esther Margaret Molnar, MD's MIPS final score?
The 2023 MIPS final score is 88.4 of 100. 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.