David Montenegro Sapien, M.D.
Internal Medicine Physician · Pomona, CA
David Montenegro Sapien, M.D. is an internal medicine physician with a practice address in Pomona, California, and NPI 1922234889, issued on Jun 5, 2009. Check the license (California A108198, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- David Montenegro Sapien
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A108198 CA
Self-reported in NPPES; status is on the state search - Practice location
- 350 Vinton Ave Ste 101, Pomona, CA 91767
- Phone
- (909) 620-5502
- Enumerated
- Jun 5, 2009
- Record last updated
- Feb 4, 2019 (not updated in 7 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20101203000598); 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 350 Vinton Ave Ste 101
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify David Montenegro Sapien in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A108198Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
91% fewer Medicare Part D claims than the average internal medicine physician in 2024
277 Medicare Part D claims for 101 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Cephalexin22 claims
- Albuterol Sulfate Hfa18 claims
- Methylprednisolone16 claims
- Levofloxacin13 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: $15.38
1 payment: 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 one group practice
- Galen Inpatient Physicians PCHanford, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
David Montenegro Sapien among 17,696 internal medicine physician records in California
David Montenegro Sapien, 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 2009, is newer than 60% of them.
- NPI issued2009 · 60% of these records are older, 37% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2006 · median 2004 among the 11,065 with a school on file
- Record last updated2019 · 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).
37 internal medicine physician records list a practice address in Pomona
They are 37 of the 5,102 NPPES records with a practice address in Pomona, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Pomona → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Kyu Ahn, M.D.Pomona, CA 917671427015593
- Samir Anabi, M.D.Pomona, CA 917671790893857
- Kenneth Brown, MDPomona, CA 917671003817537
- Lisa ButlerPomona, CA 917671003885302
- Sarah Cadman, M.D.Pomona, CA 917671427003490
- Jagtar Dhadwal, MDPomona, CA 917671801865563
- Redemption Geronimo, MDPomona, CA 917671497723803
- Jarnail Gugga, M.D.Pomona, CA 917671598769846
Common questions
What is David Montenegro Sapien, M.D.'s NPI number?
David Montenegro Sapien, M.D.'s National Provider Identifier (NPI) is 1922234889, issued on Jun 5, 2009. An NPI identifies a provider in billing; it is not a license.
Where is David Montenegro Sapien, M.D. located?
The NPPES record lists a practice address at 350 Vinton Ave Ste 101, Pomona, CA, 91767. Phone: (909) 620-5502. Providers update this record themselves, so call before visiting.
How can I verify David Montenegro Sapien, M.D.'s license?
NPPES lists California license number A108198, 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 David Montenegro Sapien, M.D. prescribe under Medicare Part D?
In 2024, David Montenegro Sapien, M.D. had 277 Medicare Part D claims for 101 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.