Nathalie Callahan Egan, P.A.
Physician Assistant · San Diego, CA
Nathalie Callahan Egan, P.A. is a physician assistant with a practice address in San Diego, California, and NPI 1770583262, issued on Jul 26, 2005. Check the license (California PA16315, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Nathalie Callahan Egan
- Credential
- P.A.
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- PA16315 CA
Self-reported in NPPES; status is on the state search - Practice location
- 4077 Fifth Ave, San Diego, CA 92103
- Phone
- (616) 686-3800
- Enumerated
- Jul 26, 2005
- Record last updated
- Jan 20, 2026
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 14,451 in California → Look up another NPI →
Also registered at 4077 Fifth Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Nathalie Callahan Egan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license PA16315Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
70% fewer Medicare Part D claims than the average physician assistant in 2024
250 Medicare Part D claims for 165 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. 23 claims were for opioids.
Most prescribed
- Cephalexin33 claims
- Doxycycline Hyclate21 claims
- Methocarbamol14 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): 100 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: $129.53
1 payment: food and beverage; the largest payer was Kiniksa Pharmaceuticals International, plc. 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.
Nathalie Callahan Egan among 14,451 physician assistant records in California
Nathalie Callahan Egan, P.A. 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 99% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileNo · 50% of these records are
- Record last updated2026 · 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).
747 physician assistant records list a practice address in San Diego
They are 747 of the 52,937 NPPES records with a practice address in San Diego, and 14,451 physician assistant records in California.
All 14,451 in California → Every provider in San Diego → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
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- Jardena Garner, PASan Diego, CA 921031073561072
- Christina Harris, PA-CSan Diego, CA 921031720053846
- Anita Majabo, PA-CSan Diego, CA 921031710006473
- Michael Nelms, PA-CSan Diego, CA 921031235113580
- Noelle Rosenkrans, P.A.San Diego, CA 921031417053067
Common questions
What is Nathalie Callahan Egan, P.A.'s NPI number?
Nathalie Callahan Egan, P.A.'s National Provider Identifier (NPI) is 1770583262, issued on Jul 26, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Nathalie Callahan Egan, P.A. located?
The NPPES record lists a practice address at 4077 Fifth Ave, San Diego, CA, 92103. Phone: (616) 686-3800. Providers update this record themselves, so call before visiting.
How can I verify Nathalie Callahan Egan, P.A.'s license?
NPPES lists California license number PA16315, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Nathalie Callahan Egan, P.A. prescribe under Medicare Part D?
In 2024, Nathalie Callahan Egan, P.A. had 250 Medicare Part D claims for 165 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.
What is Nathalie Callahan Egan, P.A.'s MIPS final score?
The 2023 MIPS final score is 100 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.