NPPES file of Aug 9, 2026

D Scott Upton, M.D.

Internal Medicine Physician · San Diego, CA

D Scott Upton, M.D. is an internal medicine physician with a practice address in San Diego, California, and NPI 1417994898, issued on Jun 2, 2006. Check the license (California A84415, 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
1417994898
Name
D Scott Upton
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
A84415 CA
Self-reported in NPPES; status is on the state search
Practice location
8765 Aero Dr, San Diego, CA 92123
Phone
(858) 541-0181
Enumerated
Jun 2, 2006
Record last updated
Nov 20, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(858) 430-0919
Medicaid ID
00A844150 CA
Medicare enrollment
Enrolled (PECOS I20040917000294); accepts Medicare assignment
Medical or professional school
Baylor College Of Medicine, 1998
Telehealth
Offers telehealth (CMS)
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 8765 Aero Dr

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

  1. Diane Brooks, N.P.Nurse Practitioner1669566477
  2. Nittly Chahal, M.D.Internal Medicine Physician1164682480
  3. Edward CladeraInternal Medicine Physician1588810329
  4. Kate Allison Domingo, NPFamily Nurse Practitioner1215216916
  5. Rolf Ehlers, M.D.Internal Medicine Physician1205939832
  6. Jennifer Lyons, PA-CMedical Physician Assistant1841495140

Verify D Scott Upton in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A84415
    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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21% more Medicare Part D claims than the average internal medicine physician in 2024

3,834 Medicare Part D claims for 395 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims. 138 claims were for opioids.

  1. D Scott Upton3,834
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium209 claims
  2. Levothyroxine Sodium189 claims
  3. Amlodipine Besylate151 claims
  4. Losartan Potassium113 claims
  5. Metformin Hcl99 claims
  6. Lisinopril98 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: $193.14

9 payments; by number, the most common kind was food and beverage; the largest payer was Abbott Laboratories. 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. D Scott Upton$193.14
  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. Focus ON Health IncSan Diego, CA

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

D Scott Upton among 17,696 internal medicine physician records in California

D Scott Upton, M.D. 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 2006, is newer than 5% of them.

  • NPI issued2006 · 5% of these records are older, 56% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 63% of these records are
  • Graduated1998 · median 2004 among the 11,065 with a school on file
  • Record last updated2020 · 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. Paulette Cazares, M.D., MPHSan Diego, CA 921231710927470
  2. Sarah Coskun, M.D.San Diego, CA 921231104878545
  3. Asim Guha Roy, MDSan Diego, CA 921231083659528
  4. Elan Hekier, M.D.San Diego, CA 921231225092463
  5. Faiz Hussain, MDSan Diego, CA 921231962422147
  6. Bernard Lichtenstein, M.D.San Diego, CA 921231104878073
  7. Karim Mansour, M.D.San Diego, CA 921231942238878
  8. Lynne Milgram, M.D.San Diego, CA 921231629016316

Common questions

What is D Scott Upton, M.D.'s NPI number?

D Scott Upton, M.D.'s National Provider Identifier (NPI) is 1417994898, issued on Jun 2, 2006. An NPI identifies a provider in billing; it is not a license.

Where is D Scott Upton, M.D. located?

The NPPES record lists a practice address at 8765 Aero Dr, San Diego, CA, 92123. Phone: (858) 541-0181. Providers update this record themselves, so call before visiting.

How can I verify D Scott Upton, M.D.'s license?

NPPES lists California license number A84415, 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 D Scott Upton, M.D. prescribe under Medicare Part D?

In 2024, D Scott Upton, M.D. had 3,834 Medicare Part D claims for 395 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.