NPPES file of Aug 9, 2026

John Daniel Santaniello, M.D.

Specialist · Upland, CA

John Daniel Santaniello, M.D. is a specialist with a practice address in Upland, California, and NPI 1124120696, issued on Sep 3, 2006. Check the license (California G21403, as entered in NPPES) with the California board that licenses this profession; 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
1124120696
Name
John Daniel Santaniello
Credential
M.D.
Primary taxonomy
Specialist 174400000X
License number
G21403 CA
Self-reported in NPPES; status is on the state search
Practice location
1238 E Arrow Hwy, Upland, CA 91786
Phone
(909) 982-4233
Enumerated
Sep 3, 2006
Record last updated
Apr 9, 2008 (not updated in 18 years: call before relying on the address or phone)
Fax
(909) 985-1103
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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8 nearest specialist records → All 5,749 in California → Look up another NPI →

Also registered at 1238 E Arrow Hwy

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

  1. Antony Hou, M.D.Rheumatology Physician1114926367
  2. Wilson Lao, MDInternal Medicine Physician1780603761
  3. Eric Lee, M.D.Specialist1760481808
  4. Mohamed Sebai, M.D.Specialist1760481915
  5. Cynthia Serabyn, DOInternal Medicine Physician1619990389

Verify John Daniel Santaniello in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license G21403    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
Find the California license search

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99% fewer Medicare Part D claims than the average specialist in 2024

15 Medicare Part D claims, against an average of 1,380 among the 8,233 providers of this specialty who prescribed in Part D.

  1. John Santaniello15
  2. Specialty average1,380

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.

John Daniel Santaniello among 5,749 specialist records in California

John Daniel Santaniello, M.D. is one of 5,749 specialist records with a practice address in California. 30% 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 7% of them.

  • NPI issued2006 · 7% of these records are older, 60% newer
  • In a Medicare fileYes · 30% of these records are
  • In the CMS Doctors and Clinicians fileNo · 19% of these records are
  • Record last updated2008 · 77% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 174400000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

22 specialist records list a practice address in Upland

They are 22 of the 1,846 NPPES records with a practice address in Upland, and 5,749 specialist records in California.

All 5,749 in California → Every provider in Upland → Specialist nationwide →

The 8 specialist records with the nearest ZIP codes

  1. Jalal Badday, M.D.Upland, CA 917861013951870
  2. Wallace Gosney, M.D.Upland, CA 917861417915778
  3. Ali Heidari, D.O.Upland, CA 917861962516351
  4. Surjit Kahlon, M.D.Upland, CA 917861790719623
  5. Eric Lee, M.D.Upland, CA 917861760481808
  6. Bipin Patadia, MDUpland, CA 917861003876657
  7. Jeffrey Ries, D.O.Upland, CA 917861780647735
  8. Sunil Saini, M.D.Upland, CA 917861386648715

Common questions

What is John Daniel Santaniello, M.D.'s NPI number?

John Daniel Santaniello, M.D.'s National Provider Identifier (NPI) is 1124120696, issued on Sep 3, 2006. An NPI identifies a provider in billing; it is not a license.

Where is John Daniel Santaniello, M.D. located?

The NPPES record lists a practice address at 1238 E Arrow Hwy, Upland, CA, 91786. Phone: (909) 982-4233. Providers update this record themselves, so call before visiting.

How can I verify John Daniel Santaniello, M.D.'s license?

NPPES lists California license number G21403, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does John Daniel Santaniello, M.D. prescribe under Medicare Part D?

In 2024, John Daniel Santaniello, M.D. had 15 Medicare Part D claims; the average among specialist prescribers was 1,380. 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.