John D. McCarthy
Infectious Disease Physician · Whittier, CA
John D. McCarthy is an infectious disease physician with a practice address in Whittier, California, and NPI 1679650923, issued on Nov 1, 2006. Check the license (California G49282, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- John D. McCarthy
- Primary taxonomy
- Infectious Disease Physician 207RI0200X
- License number
- G49282 CA
Self-reported in NPPES; status is on the state search - Practice location
- 15141 Whittier Blvd Ste 360, Whittier, CA 90603
- Phone
- (626) 912-5767
- Enumerated
- Nov 1, 2006
- Record last updated
- Feb 12, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (562) 360-1443
- Medicare enrollment
- Enrolled (PECOS I20090409000414); accepts Medicare assignment
- Medical or professional school
- University Of California, Geffen School Of Medicine, 1981
- Entity
- Type 1 · individual
8 nearest infectious disease physician records → All 1,119 in California → Look up another NPI →
Verify John D. McCarthy in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G49282Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
94% more Medicare Part D claims than the average infectious disease physician in 2024
1,337 Medicare Part D claims for 123 beneficiaries, against an average of 689 among the 7,388 providers of this specialty who prescribed in Part D. Brand-name drugs were 17% of claims. 11 claims were for opioids.
Most prescribed
- Cephalexin95 claims
- Levofloxacin94 claims
- Biktarvy76 claims
- Amoxicillin-Clavulanate Potass73 claims
- Vancomycin Hcl67 claims
- Ciprofloxacin Hcl57 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.
Industry payments in 2024: $142.09
3 payments; by number, the most common kind was food and beverage; the largest payer was Shionogi Inc. The 3,895 providers of this specialty with any payment received $4,362.19 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.
John D. McCarthy among 1,119 infectious disease physician records in California
John D. McCarthy 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 2006, is newer than 4% of them.
- NPI issued2006 · 4% of these records are older, 54% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated1981 · median 2003 among the 735 with a school on file
- Record last updated2021 · 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 Whittier → Infectious Disease Physician nationwide →
The 8 infectious disease physician records with the nearest ZIP codes
- Antonio Escobedo, MDWhittier, CA 906031770756330
- Meri Rathbun, MDWhittier, CA 906021336349299
- Uday Chauhan, MDWhittier, CA 906051285213603
- Bryan Doo, M.D.Whittier, CA 906051962500058
- Grace Bautista, M.D.Pasadena, CA 906401215021720
- Leo Li, MDMontebello, CA 906401154463149
- Diana David, MDTorrance, CA 905051972143576
- Daniel Ho, MDTorrance, CA 905051245867613
Common questions
What is John D. McCarthy's NPI number?
John D. McCarthy's National Provider Identifier (NPI) is 1679650923, issued on Nov 1, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John D. McCarthy located?
The NPPES record lists a practice address at 15141 Whittier Blvd Ste 360, Whittier, CA, 90603. Phone: (626) 912-5767. Providers update this record themselves, so call before visiting.
How can I verify John D. McCarthy's license?
NPPES lists California license number G49282, 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 John D. McCarthy prescribe under Medicare Part D?
In 2024, John D. McCarthy had 1,337 Medicare Part D claims for 123 beneficiaries; the average among infectious disease physician prescribers was 689. 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.