Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. GABRIEL NOAH WATERMAN MD, MBA
NPI 1639556434
Internal Medicine in Long Beach, CA

Active since April 30, 2015PECOS Enrolled
3800 KILROY AIRPORT WAY STE 100, LONG BEACH, CA 90806(888) 828-7226(424) 222-7755 Get Directions Write a Review

NPPES record last updated: October 28, 2026. Verified against the NPPES registry weekly; last sync: November 08, 2026.

Record update history: Oct 28, 2026, Oct 8, 2025, Aug 29, 2019 and 1 more (4 updates tracked since 2018).

About Dr. Gabriel Noah Waterman Md, Mba NPPES

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

DR. GABRIEL NOAH WATERMAN MD, MBA (NPI 1639556434) is an individual internal medicine provider in Long Beach, California, licensed in California (A144802) and active in the NPI registry since April 2015. He is enrolled in Medicare PECOS and maintains a secondary practice location in Las Vegas.

NPPES Registry Identity

NPI1639556434
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. GABRIEL NOAH WATERMANCredential: MD, MBA
Location Address3800 KILROY AIRPORT WAY STE 100Long Beach, CA 90806-6818
Mailing Address3800 Kilroy Airport Way Ste 100Long Beach, CA 90806-6818 · (888) 828-7226 · Fax (424) 222-7755
Fax(424) 222-7755
Sole ProprietorNo
Enumeration DateApril 30, 2015
Last NPPES UpdateOctober 28, 20264 updates tracked since enumeration
NPPES CertifiedOctober 28, 2026
✔ NPI 1639556434 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
Licenses✔ Licensed in CA · A144802✔ Licensed in AZ · 71279✔ Licensed in OR · MD232191✔ Licensed in NV · 28504
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
3800 KILROY AIRPORT WAY STE 100, Long Beach, CA 90806

Secondary Practice Location 1

Location 12801 W Charleston Blvd Ste 71Las Vegas, NV 89102-1922 · Phone (855) 828-7226

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Gabriel Noah Waterman Md, Mba 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 Reassignment

Medicare enrollment records show Gabriel Waterman reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Internal Medicine
12900 PARK PLAZA DR, STE 700, MS-7110
Cerritos, CA 90703
  • Reassigned Medicare billing, California enrollment
  • 235 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 90806 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 20

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

Physician Assistant (Medical)
3800 KILROY AIRPORT WAY STE 100
LONG BEACH, CA 90806
Physician Assistant
3800 KILROY AIRPORT WAY STE 100
LONG BEACH, CA 90806
Physician Assistant
3800 KILROY AIRPORT WAY STE 100
LONG BEACH, CA 90806
Pharmacist
3800 KILROY AIRPORT WAY STE 100
LONG BEACH, CA 90806
Family Medicine (Adult Medicine)
3800 KILROY AIRPORT WAY STE 100
LONG BEACH, CA 90806
Nurse Practitioner (Family)
3800 KILROY AIRPORT WAY STE 100
LONG BEACH, CA 90806
Clinic/Center (Multi-Specialty)
3800 KILROY AIRPORT WAY STE 100
LONG BEACH, CA 90806
Family Medicine
3800 KILROY AIRPORT WAY STE 100
LONG BEACH, CA 90806

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 Gabriel Waterman's NPI number?

The NPI number for Gabriel Waterman is 1639556434. It was assigned to this individual provider in the NPPES registry on April 30, 2015.

Where is Gabriel Waterman located?

Gabriel Waterman practices at 3800 Kilroy Airport Way Ste 100, Long Beach, CA 90806. The listed phone number is (888) 828-7226.

What is Gabriel Waterman's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Gabriel Waterman enrolled in Medicare?

Yes. Gabriel Waterman is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Gabriel Waterman's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Gabriel Waterman reassigns Medicare benefits to Albion Medical Partners Of California West P C (Cerritos, 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 Gabriel Waterman'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 Gabriel Waterman was last updated on October 28, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 days 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.