DAVID MONTENEGRO SAPIEN JR. M.D.
NPI 1922234889
Internal Medicine in Pomona, CA
About David Montenegro Sapien Jr. M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DAVID MONTENEGRO SAPIEN JR. M.D. (NPI 1922234889) is an individual internal medicine provider in Pomona, California, licensed in California (A108198) and active in the NPI registry since June 2009. He is enrolled in Medicare PECOS, maintains a secondary practice location in Riverside, and is a graduate of Other (2006).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
David Montenegro Sapien Jr. M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
8Medicare enrollment records show David Sapien reassigns Medicare billing to 8 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Pomona, CA 91767
- Reassigned Medicare billing, California enrollment
- 4 clinicians in this Medicare group
Upland, CA 91786
- Reassigned Medicare billing, California enrollment
- 34 clinicians in this Medicare group
Glendora, CA 91741
- Reassigned Medicare billing, California enrollment
- 962 clinicians in this Medicare group
Colton, CA 92324
- Reassigned Medicare billing, California enrollment
- 338 clinicians in this Medicare group
Apple Valley, CA 92307
- Reassigned Medicare billing, California enrollment
- 914 clinicians in this Medicare group
Porterville, CA 93257
- Reassigned Medicare billing, California enrollment
- 159 clinicians in this Medicare group
Merced, CA 95340
- Reassigned Medicare billing, California enrollment
- 126 clinicians in this Medicare group
Modesto, CA 95350
- Reassigned Medicare billing, California enrollment
- 176 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 5
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 91767 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Reported Quality Measures
Other Providers at the Same Location NPPES 3
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
POMONA, CA 91767
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is David Sapien's NPI number?
The NPI number for David Sapien is 1922234889. It was assigned to this individual provider in the NPPES registry on June 5, 2009.
Where is David Sapien located?
David Sapien practices at 350 Vinton Ave Ste 101, Pomona, CA 91767. The listed phone number is (909) 620-5502.
What is David Sapien's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is David Sapien enrolled in Medicare?
Yes. David Sapien is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for David Sapien's services?
According to the CMS Revalidation Reassignment List (October 2026 release), David Sapien reassigns Medicare benefits to 8 organizations: New Hope Cancer And Research Institute A Medical Corporation (Pomona, CA), Cajon Medical Group, PC (Upland, CA), Galen Inpatient Physicians PC (Glendora, CA), Quantum Healthcare Medical Associates Inc. (Colton, CA), Hospitalist Medicine Physicians Of California, Inc (Apple Valley, CA) and 3 more organizations, listed in the Medicare section above. Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for David Sapien's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for David Sapien was last updated on February 4, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# David Montenegro Sapien Jr., M.D. · NPI 1922234889
Internal Medicine physician in Pomona, California. Individual provider, active in the CMS NPPES registry since June 5, 2009.
## Identity
- **NPI:** 1922234889 (Entity type: Individual)
- **Enumerated:** June 5, 2009
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** A108198 (California)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 350 VINTON AVE STE 101, Pomona, CA 91767
- **Phone:** (909) 620-5502
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 8 organizations under Medicare reassignment (form CMS-855R): New Hope Cancer And Research Institute A Medical Corporation (NPI 1336283811, Pomona, CA); Cajon Medical Group, PC (NPI 1821889320, Upland, CA); Galen Inpatient Physicians PC (NPI 1134082605, Glendora, CA); Quantum Healthcare Medical Associates Inc. (NPI 1568490597, Colton, CA); Hospitalist Medicine Physicians Of California, Inc (NPI 1184663965, Apple Valley, CA); and 3 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2006
## Record status
- **NPPES last updated:** February 4, 2019
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Source: [NPI Profile](https://npiprofile.com/npi/1922234889) · Data from the CMS NPPES public registry.