NPPES file of Aug 9, 2026

Eric Royz

Internal Medicine Physician · San Diego, CA

Eric Royz is an internal medicine physician with a practice address in San Diego, California, and NPI 1821604612, issued on Sep 17, 2020. Check the license (California PTL9093, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1821604612
Name
Eric Royz
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
PTL9093 CA
Self-reported in NPPES; status is on the state search
Practice location
200 W Arbor Dr # MC8425, San Diego, CA 92103
Phone
(858) 335-4787
Enumerated
Sep 17, 2020
Record last updated
Sep 27, 2024
Medicare enrollment
Enrolled (PECOS I20250915002923); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 200 W Arbor Dr # MC8425

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Sheyda Aboii, MD, PHDStudent in an Organized Health Care Education/Training Program1508704677
  2. Giacomo Adoncecchi, MDStudent in an Organized Health Care Education/Training Program1437918943
  3. Shadee Aghel, MDStudent in an Organized Health Care Education/Training Program1316885528
  4. Sultan Al AzzawiStudent in an Organized Health Care Education/Training Program1982552113
  5. Tanner Aldous, MDStudent in an Organized Health Care Education/Training Program1942001029
  6. Evan AlesStudent in an Organized Health Care Education/Training Program1265234769

Verify Eric Royz in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license PTL9093
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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93% fewer Medicare Part D claims than the average internal medicine physician in 2024

214 Medicare Part D claims for 72 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.

  1. Eric Royz214
  2. Specialty average3,176

Most prescribed

  1. Jardiance11 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: $150.81

2 payments; by number, the most common kind was food and beverage; the largest payer was Janssen Pharmaceuticals, Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Eric Royz$150.81
  2. Specialty average$1,303.06

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

  1. Southern California Permanente Medical GroupSan Diego, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Eric Royz among 17,696 internal medicine physician records in California

Eric Royz is one of 17,696 internal medicine 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 2020, is newer than 89% of them.

  • NPI issued2020 · 89% of these records are older, 8% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 63% of these records are
  • Graduated2022 · median 2004 among the 11,065 with a school on file
  • Record last updated2024 · 61% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

961 internal medicine physician records list a practice address in San Diego

They are 961 of the 52,937 NPPES records with a practice address in San Diego, and 17,696 internal medicine physician records in California.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Hamid Amjadi, DOSan Diego, CA 921031700861333
  2. Donald Brandon, M.D.San Diego, CA 921031740272467
  3. Daniel Bressler, M.D.San Diego, CA 921031700887726
  4. Eric Dahms, M.D.San Diego, CA 921031306808464
  5. Janette Gray, M.D.San Diego, CA 921031295721876
  6. San Hsieh, MDSan Diego, CA 921031851388847
  7. Arthur Kingsbury, M.D.San Diego, CA 921031144216284
  8. Timothy O'Neill, M.D.San Diego, CA 921031831172295

Common questions

What is Eric Royz's NPI number?

Eric Royz's National Provider Identifier (NPI) is 1821604612, issued on Sep 17, 2020. An NPI identifies a provider in billing; it is not a license.

Where is Eric Royz located?

The NPPES record lists a practice address at 200 W Arbor Dr # MC8425, San Diego, CA, 92103. Phone: (858) 335-4787. Providers update this record themselves, so call before visiting.

How can I verify Eric Royz's license?

NPPES lists California license number PTL9093, 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 Eric Royz prescribe under Medicare Part D?

In 2024, Eric Royz had 214 Medicare Part D claims for 72 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.