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DR. MOSES S NASSER JR. D.O.
NPI 1902023682
Family Medicine - Addiction Medicine in Glendora, CA

Active since April 20, 2007PECOS Enrolled
1146 E ROUTE 66, GLENDORA, CA 91740(909) 206-4188 Get Directions Write a Review

NPPES record last updated: July 14, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jul 14, 2026, Dec 4, 2020, May 4, 2020 and 2 more (5 updates tracked since 2020).

About Dr. Moses S Nasser Jr. D.o. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. MOSES S NASSER JR. D.O. (NPI 1902023682) is an individual addiction medicine provider in Glendora, California, licensed in California (20A9301) and active in the NPI registry since April 2007. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1902023682
Entity TypeIndividualMale
Primary Taxonomy207QA0401X
Provider Legal NameDR. MOSES S NASSER JR.Credential: D.O.
Location Address1146 E ROUTE 66Glendora, CA 91740-3773
Mailing Address1146 E Route 66Glendora, CA 91740-3773 · (909) 206-4188
Phone(909) 206-4188
Sole ProprietorNo
Enumeration DateApril 20, 2007
Last NPPES UpdateJuly 14, 20265 updates tracked since enumeration
NPPES CertifiedJuly 14, 2026
✔ NPI 1902023682 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily Medicine · Addiction MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207QA0401X
License✔ Licensed in CA · 20A9301
Definition
A family medicine physician who specializes in the diagnosis and treatment of addictions.
1146 E ROUTE 66, Glendora, CA 91740
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Moses S Nasser Jr. D.o. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

2

Medicare enrollment records show Moses Nasser reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Knd Develpment 59 LLC
5.0 mi
Hospitalist
845 N LARK ELLEN
West Covina, CA 91791
  • Reassigned Medicare billing, California enrollment
  • Medicare enrollment name: Knd Development 59 LLC
  • 204 clinicians in this Medicare group
NPI 1538498878 (626) 339-5451
Pinnacle Medical Group, Inc
24 mi
Family Medicine
8110 MANGO AVE
Fontana, CA 92335
  • Reassigned Medicare billing, California enrollment
  • 149 clinicians in this Medicare group
NPI 1376876912 (909) 427-1303

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 91740 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$142.39 typical visit price
range $62.96 – $187.60
Typical copayment $35.59 (range $15.74 – $46.90)
Most-billed visit code 99204
Established Patient
$109.96 typical visit price
range $20.84 – $153.61
Typical copayment $27.49 (range $5.21 – $38.40)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

PATHWAYS 1 SOBER LIVING
Community/Behavioral Health
1146 E ROUTE 66
GLENDORA, CA 91740
Los Angeles County (626) 515-6424

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 Moses Nasser's NPI number?

The NPI number for Moses Nasser is 1902023682. It was assigned to this individual provider in the NPPES registry on April 20, 2007.

Where is Moses Nasser located?

Moses Nasser practices at 1146 E Route 66, Glendora, CA 91740. The listed phone number is (909) 206-4188.

What is Moses Nasser's specialty?

The primary specialty registered for this NPI is Family Medicine, specializing in Addiction Medicine, with taxonomy code 207QA0401X.

Is Moses Nasser enrolled in Medicare?

Yes. Moses Nasser is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Moses Nasser's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Moses Nasser reassigns Medicare benefits to 2 organizations: Knd Develpment 59 LLC (West Covina, CA) and Pinnacle Medical Group, Inc (Fontana, CA). 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 Moses Nasser'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 Moses Nasser was last updated on July 14, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.