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WELCOME HEALTH MEDICAL GROUP
NPI 1174295349
Internal Medicine in Whittier, CA

Active since October 05, 2021CLIA Certified · 2 labs
8135 PAINTER AVE STE 105, WHITTIER, CA 90602(562) 444-5450(562) 444-8870 Get Directions Write a Review

NPPES record last updated: October 18, 2024. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Feb 1, 2023, Oct 5, 2021 (2 updates tracked since 2021).

About Welcome Health Medical Group NPPES

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

WELCOME HEALTH MEDICAL GROUP (NPI 1174295349) is a healthcare organization registered as an internal medicine in Whittier, California and active in the NPI registry since October 2021. The organization holds 2 active CLIA laboratory certificates, maintains a secondary practice location in Long Beach, and lists Anthony Nguyen, President, as its authorized official.

NPPES Registry Identity

NPI1174295349
Entity TypeOrganization
Primary Taxonomy207R00000X
Legal Business NameWELCOME HEALTH MEDICAL GROUP
Location Address8135 PAINTER AVE STE 105Whittier, CA 90602-3158
Mailing Address3800 Kilroy Airport Way Ste 100Long Beach, CA 90806-6818 · (562) 444-5450 · Fax (562) 270-9738
Phone(562) 444-5450
Fax(562) 444-8870
Organization SubpartNo
Authorized OfficialAnthony NguyenPresident · (714) 390-3922
Enumeration DateOctober 5, 2021
Last NPPES UpdateOctober 18, 20242 updates tracked since enumeration
NPPES CertifiedOctober 18, 2024
✔ NPI 1174295349 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
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.
8135 PAINTER AVE STE 105, Whittier, CA 90602
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Secondary Practice Location 1

Location 13800 Kilroy Airport Way Ste 100Long Beach, CA 90806-6818 · Phone (562) 444-5450 · Fax (562) 444-8870

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Welcome Health Medical Group is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

8

Medicare enrollment records show 8 clinicians reassign Medicare billing to Welcome Health Medical Group, which bills Medicare for the services they deliver. Of these, 4 practice within 10 miles. They are listed nearest first.

Clinicians, nearest first (8)

Anthony Nguyen, M.D.
Internal Medicine
NPI 1891053351
12900 PARK PLAZA DR STE 150
Cerritos, CA 90703
(562) 977-4639
✔ PECOS6.9 mi
Gema Ramirez
Nurse Practitioner
NPI 1386244457
11654 BRYANT ROAD
El Monte, CA 91732
(626) 234-7943
✔ PECOS7.8 mi
Oscar Zambrano, M.D.
Cardiovascular Disease (Cardiology)
NPI 1184628927
6513 ATLANTIC AVE
Bell, CA 90201
(323) 581-1649
✔ PECOS✔ Accepts Medicare8.9 mi
Michael Wang, M.D.
Hospitalist
NPI 1538253802
6513 ATLANTIC AVE
Bell, CA 90201
(562) 444-5450
✔ PECOS✔ Accepts Medicare8.9 mi
Glenn Newman, M.D.
Family Practice
NPI 1568433274
22411 HAWTHORNE BLVD
Torrance, CA 90505
(310) 921-7100
✔ PECOS✔ Accepts Medicare21 mi
Manish Saha, M.D.
Family Practice
NPI 1619201167
500 SUPERIOR AVE STE 160
Newport Beach, CA 92663
(949) 791-3006
✔ PECOS✔ Accepts Medicare24 mi
Harini Koko, AGNP-C
Nurse Practitioner
NPI 1356815641
2 MELA LN
Rancho Palos Verdes, CA 90275
(636) 248-9722
✔ PECOS✔ Accepts Medicare24 mi
Ryan Bradley Ortizo, M.D.
Family Practice
NPI 1083173348
4435 BROCKTON AVE
Riverside, CA 92501
(951) 682-9900
✔ PECOS✔ Accepts Medicare37 mi

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

CLIA Laboratory Certificates CMS CLIA 2

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Waiver 05D0548061

Welcome Health Medical Group-Bell · Bell, CA
Active · expires Aug 31, 2028
CLIA Number05D0548061
Laboratory TypePhysician Office
Certificate Effective DateSeptember 1, 2026
Certificate Expiration DateAugust 31, 2028
Laboratory DirectorDeena Goldwater
Laboratory Phone(562) 444-5450
Laboratory LocationWelcome Health Medical Group-Bell6513 Atlantic Ave, Bell, CA 90201
CLIA data matches this NPI record on: Name Phone
This certificate is issued to a laboratory to perform only waived tests.

Certificate of Waiver 05D2318086

Welcome Health Medical Group Riverside · Riverside, CA
Active · expires Feb 4, 2027
CLIA Number05D2318086
Laboratory TypeHome Based Primary Care
Certificate Effective DateFebruary 5, 2025
Certificate Expiration DateFebruary 4, 2027
Laboratory DirectorDeena Goldwater
Laboratory Phone(562) 444-5450
Laboratory LocationWelcome Health Medical Group Riverside4435 Brockton Ave, Riverside, CA 92501
CLIA data matches this NPI record on: Name Phone
This certificate is issued to a laboratory to perform only waived tests.

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 Welcome Health Medical Group's NPI number?

The NPI number for Welcome Health Medical Group is 1174295349. It was assigned to this organization in the NPPES registry on October 5, 2021.

Where is Welcome Health Medical Group located?

Welcome Health Medical Group is located at 8135 Painter Ave Ste 105, Whittier, CA 90602. The listed phone number is (562) 444-5450.

What is Welcome Health Medical Group's specialty?

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

Is Welcome Health Medical Group enrolled in Medicare?

Yes. Welcome Health Medical Group is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Welcome Health Medical Group?

According to the CMS Revalidation Reassignment List (October 2026 release), 8 clinicians in 5 Medicare specialties reassign their Medicare billing to Welcome Health Medical Group. A 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 the clinician's services. The largest specialties are Family Practice (3), Nurse Practitioner (2) and Cardiovascular Disease (Cardiology) (1). Of these, 4 practice within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Does Welcome Health Medical Group hold CLIA laboratory certificates?

Yes. 2 active CLIA laboratory certificates are associated with this NPI under the federal Clinical Laboratory Improvement Amendments program. The certificates are listed in the CLIA Laboratory Certificates section above.

When was this NPI record last updated?

The NPPES record for Welcome Health Medical Group was last updated on October 18, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.