ANDREW DAM DO
NPI 1225590037
Internal Medicine - Gastroenterology in Pomona, CA
About Andrew Dam Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ANDREW DAM DO (NPI 1225590037) is an individual gastroenterology provider in Pomona, California, licensed in California (20A23524) and active in the NPI registry since April 2019. He is enrolled in Medicare PECOS, maintains a secondary practice location in South Miami, and is a graduate of Touro Un College Of Osteopathic Medicine, Vallejo (2019).
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
Andrew Dam Do 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 Reassignment
Medicare enrollment records show Andrew Dam reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Rancho Cucamonga, CA 91730
- Reassigned Medicare billing, California enrollment
- 10 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.
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.
Other Providers at the Same Location NPPES 2
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Andrew Dam's NPI number?
The NPI number for Andrew Dam is 1225590037. It was assigned to this individual provider in the NPPES registry on April 1, 2019.
Where is Andrew Dam located?
Andrew Dam practices at 250 W Bonita Ave Ste 250, Pomona, CA 91767. The listed phone number is (909) 655-0300.
What is Andrew Dam's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.
Is Andrew Dam enrolled in Medicare?
Yes. Andrew Dam 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 organization bills Medicare for Andrew Dam's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Andrew Dam reassigns Medicare benefits to Platinum Digestive Health (Rancho Cucamonga, CA). The 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 Andrew Dam'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 Andrew Dam was last updated on August 4, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 months 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.
# Andrew Dam, DO · NPI 1225590037
Gastroenterology physician in Pomona, California. Individual provider, active in the CMS NPPES registry since April 1, 2019.
## Identity
- **NPI:** 1225590037 (Entity type: Individual)
- **Enumerated:** April 1, 2019
- **Primary specialty:** Internal Medicine - Gastroenterology · taxonomy 207RG0100X
- **State license:** 20A23524 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 250 W BONITA AVE STE 250, Pomona, CA 91767-1864
- **Phone:** (909) 655-0300
## 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:** Platinum Digestive Health (NPI 1629537352, Rancho Cucamonga, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Touro Un College Of Osteopathic Medicine, Vallejo, class of 2019
## Record status
- **NPPES last updated:** August 4, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1225590037) · Data from the CMS NPPES public registry.