Jose Adriano Santiago, M.D.
Internal Medicine Physician · Montclair, CA
Jose Adriano Santiago, M.D. is an internal medicine physician with a practice address in Montclair, California, and NPI 1790763191, issued on Jan 5, 2006. Check the license on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Jose Adriano Santiago
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- ME81711 FL
Self-reported in NPPES; status is on the state search - Practice location
- 9525 Monte Vista Ave Ste 105, Montclair, CA 91763
- Phone
- (909) 626-1205
- Enumerated
- Jan 5, 2006
- Record last updated
- Jul 13, 2022
- Medicare enrollment
- Enrolled (PECOS I20171019003049); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 9525 Monte Vista Ave Ste 105
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Andres Gonzalez, M.D.Family Medicine Physician1669892147
- Shahram Khorrami, M.D.Pulmonary Disease Physician1306876123
- John Kim, DOPulmonary Disease Physician1710206024
- Hsin-Chen LiuHospitalist Physician1609353135
- George Moran, MDInternal Medicine Physician1639673635
Verify Jose Adriano Santiago in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of CaliforniaCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
28% fewer Medicare Part D claims than the average internal medicine physician in 2024
2,274 Medicare Part D claims for 434 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims. 85 claims were for opioids.
Most prescribed
- Atorvastatin Calcium131 claims
- Losartan Potassium70 claims
- Eliquis69 claims
- Hydralazine Hcl58 claims
- Amlodipine Besylate56 claims
- Omeprazole52 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: $501.39
38 payments; by number, the most common kind was food and beverage; the largest payer was GlaxoSmithKline, LLC. 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.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 2 group practices
- Inland Physicians Hospitalist ServicesUpland, CA
- Inland Physicians Primary Care ServicesMontclair, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Jose Adriano Santiago among 17,696 internal medicine physician records in California
Jose Adriano Santiago, 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
- Graduated1986 · median 2004 among the 11,065 with a school on file
- Record last updated2022 · 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).
12 internal medicine physician records list a practice address in Montclair
They are 12 of the 1,301 NPPES records with a practice address in Montclair, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Montclair → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Mohammed Al-Khayyat, M.D.Montclair, CA 917631588195424
- Khanh Duong, MDMontclair, CA 917631225528466
- Dion Kencana, MDMontclair, CA 917631528709805
- Sadia Khan, MDMontclair, CA 917631225271125
- George Moran, MDMontclair, CA 917631639673635
- Kiandokht Partovi, M.D.Montclair, CA 917631689763427
- Atif Qadeer, MDMontclair, CA 917631730160201
- Ali Salem, M.D.Montclair, CA 917631376983122
Common questions
What is Jose Adriano Santiago, M.D.'s NPI number?
Jose Adriano Santiago, M.D.'s National Provider Identifier (NPI) is 1790763191, issued on Jan 5, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Jose Adriano Santiago, M.D. located?
The NPPES record lists a practice address at 9525 Monte Vista Ave Ste 105, Montclair, CA, 91763. Phone: (909) 626-1205. Providers update this record themselves, so call before visiting.
How can I verify Jose Adriano Santiago, M.D.'s license?
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 Jose Adriano Santiago, M.D. prescribe under Medicare Part D?
In 2024, Jose Adriano Santiago, M.D. had 2,274 Medicare Part D claims for 434 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.