Katherine Kay Robes, PA-C
Physician Assistant · Whittier, CA
Katherine Kay Robes, PA-C is a physician assistant with a practice address in Whittier, California, and NPI 1477820470, issued on Nov 19, 2011. Check the license (California PA21910, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Katherine Kay Robes
- Credential
- PA-C
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- PA21910 CA
Self-reported in NPPES; status is on the state search - Practice location
- 15725 E. Whittier Blvd, Whittier, CA 90603
- Phone
- (562) 789-5401
- Enumerated
- Nov 19, 2011
- Record last updated
- Nov 19, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (562) 464-5030
- Medicare enrollment
- Enrolled (PECOS I20120329000412); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 14,451 in California → Look up another NPI →
Also registered at 15725 E. Whittier Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Sylvia Gonzalez, M.D.Pediatrics Physician1265529176
- Randolph Holmes, M.D.Family Medicine Physician1235227984
Verify Katherine Kay Robes in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license PA21910Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
6% more Medicare Part D claims than the average physician assistant in 2024
881 Medicare Part D claims for 578 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D.
Most prescribed
- Cephalexin98 claims
- Azithromycin69 claims
- Amoxicillin64 claims
- Albuterol Sulfate Hfa57 claims
- Amoxicillin-Clavulanate Potass41 claims
- Ciprofloxacin Hcl29 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 practice group's MIPS final score for 2023 (Medicare payment program): 76.3 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: $124.76
1 payment: food and beverage; the largest payer was Janssen Biotech, Inc. The 64,719 providers of this specialty with any payment received $841.65 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.
Bills Medicare through one group practice
- Pih Health PhysiciansDowney, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Katherine Kay Robes among 14,451 physician assistant records in California
Katherine Kay Robes, PA-C is one of 14,451 physician assistant 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 2011, is newer than 30% of them.
- NPI issued2011 · 30% of these records are older, 67% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 50% of these records are
- Graduated2011 · median 2018 among the 7,214 with a school on file
- Record last updated2011 · 40% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
89 physician assistant records list a practice address in Whittier
They are 89 of the 2,836 NPPES records with a practice address in Whittier, and 14,451 physician assistant records in California.
All 14,451 in California → Every provider in Whittier → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Jennifer Aquino, PAWhittier, CA 906031952234379
- Alexis Burciaga, PA-CWhittier, CA 906031174183388
- Raymond CezarWhittier, CA 906031306567540
- Andrea Galdamez, PAWhittier, CA 906031598078230
- Paul Jones, PA-CWhittier, CA 906031023837895
- William Mahoney, P.A.Whittier, CA 906031851331854
- Evelyn NguyenWhittier, CA 906031184149064
- Cesar Preciado, PA-CWhittier, CA 906031366033573
Common questions
What is Katherine Kay Robes, PA-C's NPI number?
Katherine Kay Robes, PA-C's National Provider Identifier (NPI) is 1477820470, issued on Nov 19, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Katherine Kay Robes, PA-C located?
The NPPES record lists a practice address at 15725 E. Whittier Blvd, Whittier, CA, 90603. Phone: (562) 789-5401. Providers update this record themselves, so call before visiting.
How can I verify Katherine Kay Robes, PA-C's license?
NPPES lists California license number PA21910, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Katherine Kay Robes, PA-C prescribe under Medicare Part D?
In 2024, Katherine Kay Robes, PA-C had 881 Medicare Part D claims for 578 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.
What is Katherine Kay Robes, PA-C's MIPS final score?
The 2023 MIPS final score is 76.3 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.