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ALPHA HOSPITALIST GROUP INC
NPI 1982086914
Hospitalist in Fountain Valley, CA

Active since June 25, 2015
17150 EUCLID ST STE 200, FOUNTAIN VALLEY, CA 92708(800) 641-4651(714) 333-4838 Get Directions Write a Review

NPPES record last updated: February 15, 2022. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Feb 15, 2022, Oct 19, 2016 (2 updates tracked since 2016).

About Alpha Hospitalist Group Inc NPPES

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

ALPHA HOSPITALIST GROUP INC (NPI 1982086914) is a healthcare organization registered as a hospitalist in Fountain Valley, California and active in the NPI registry since June 2015. The organization lists Ky Vu, President, as its authorized official.

NPPES Registry Identity

NPI1982086914
Entity TypeOrganization
Primary Taxonomy208M00000X
Legal Business NameALPHA HOSPITALIST GROUP INC
Location Address17150 EUCLID ST STE 200Fountain Valley, CA 92708-4092
Mailing Address17150 Euclid St Ste 200Fountain Valley, CA 92708-4092 · (800) 641-4651 · Fax (714) 333-4838
Phone(800) 641-4651
Fax(714) 333-4838
Organization SubpartNo
Authorized OfficialKy VuPresident · (714) 501-5798
Enumeration DateJune 25, 2015
Last NPPES UpdateFebruary 15, 20222 updates tracked since enumeration
NPPES CertifiedFebruary 15, 2022
✔ NPI 1982086914 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyHospitalistAllopathic & Osteopathic Physicians
Taxonomy Code208M00000X
Definition
Hospitalists are physicians whose primary professional focus is the general medical care of hospitalized patients. Their activities include patient care, teaching, research, and leadership related to Hospital Medicine. The term 'hospitalist' refers to physicians whose practice emphasizes providing care for hospitalized patients.
Also ListedInternal MedicineTaxonomy 207R00000X
17150 EUCLID ST STE 200, Fountain Valley, CA 92708
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Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X MULTIPLE SINGLE 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)

Alpha Hospitalist Group Inc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

16

Medicare enrollment records show 16 clinicians reassign Medicare billing to Alpha Hospitalist Group Inc, which bills Medicare for the services they deliver. Of these, 1 practice at this address and 13 within 10 miles. They are listed nearest first.

Clinicians by Medicare Specialty 5

Nurse Practitioner9
Internal Medicine4
Family Practice1
Hospitalist1
Physical Medicine and Rehabilitation1

Clinicians, nearest first (16)

Stephanie Kim, D.O.
Physical Medicine and Rehabilitation
NPI 1700107265
17150 EUCLID ST STE 200
Fountain Valley, CA 92708
(707) 463-8000
✔ PECOS✔ Accepts MedicareSame address
Jonathan Pham, FNP-BC
Nurse Practitioner
NPI 1053298406
17150 EUCLID ST STE 200
Fountain Valley, CA 92708
(714) 395-4595
✔ PECOS✔ Accepts Medicare0.2 mi
Magdalena Austin, FNP-C
Nurse Practitioner
NPI 1982350385
17150 EUCLID ST STE 200
Fountain Valley, CA 92708
(800) 641-4651
✔ PECOS✔ Accepts Medicare0.3 mi
Sara Ghazi, DO
Internal Medicine
NPI 1861816886
17150 EUCLID ST STE 200
Fountain Valley, CA 92708
(714) 395-4595
✔ PECOS✔ Accepts Medicare0.3 mi
Mickey Nguyen, MD
Family Practice
NPI 1831684737
17150 EUCLID ST STE 200
Fountain Valley, CA 92708
(936) 900-5098
✔ PECOS✔ Accepts Medicare0.3 mi
Ky Vu, M.D.
Internal Medicine
NPI 1801812664
17150 EUCLID ST STE 200
Fountain Valley, CA 92708
(714) 501-5798
✔ PECOS✔ Accepts Medicare0.3 mi
David Chan, D.O.
Hospitalist
NPI 1497068688
10840 WARNER AVE STE 103
Fountain Valley, CA 92708
(714) 395-4595
✔ PECOS✔ Accepts Medicare0.4 mi
Yu-Nan Hsu, D.O
Internal Medicine
NPI 1922382407
11037 WARNER AVE SUITE 334
Fountain Valley, CA 92708
(800) 641-4651
✔ PECOS✔ Accepts Medicare0.5 mi
Long Huynh
Nurse Practitioner
NPI 1093203838
9353 BOLSA AVE
Westminster, CA 92683
(800) 641-4651
✔ PECOS✔ Accepts Medicare2.9 mi
Chidao Nguyen, DO
Internal Medicine
NPI 1780850198
9353 BOLSA AVE STE E62
Westminster, CA 92683
(800) 461-4651
✔ PECOS✔ Accepts Medicare2.9 mi
Elizabeth Branson
Nurse Practitioner
NPI 1023587516
2010 E 1ST ST # 100
Santa Ana, CA 92705
(909) 800-3532
✔ PECOS✔ Accepts Medicare6.0 mi
Jaeson Pham, NP
Nurse Practitioner
NPI 1083310999
801 N TUSTIN AVE STE 507
Santa Ana, CA 92705
(949) 566-8888
✔ PECOS✔ Accepts Medicare6.7 mi
Minh Le, AGACNP-BC
Nurse Practitioner
NPI 1306579172
1100 W TOWN AND COUNTRY RD STE 1300
Orange, CA 92868
(855) 434-7763
✔ PECOS✔ Accepts Medicare9.6 mi
Yasmin Khalil, FNP
Nurse Practitioner
NPI 1942187885
331 E CHAPMAN AVE APT A
Placentia, CA 92870
(951) 295-2986
✔ PECOS✔ Accepts Medicare12 mi
Casandra Hook
Nurse Practitioner
NPI 1578421145
1 RAPOSA
Rancho Santa Margarita, CA 92688
(949) 616-5582
✔ PECOS✔ Accepts Medicare20 mi
Sokmom Ung, FNP
Nurse Practitioner
NPI 1811530959
1959 KINGSDALE AVE
Redondo Beach, CA 90278
(310) 210-1000
✔ PECOS✔ Accepts Medicare27 mi

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

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 Alpha Hospitalist Group Inc's NPI number?

The NPI number for Alpha Hospitalist Group Inc is 1982086914. It was assigned to this organization in the NPPES registry on June 25, 2015.

Where is Alpha Hospitalist Group Inc located?

Alpha Hospitalist Group Inc is located at 17150 Euclid St Ste 200, Fountain Valley, CA 92708. The listed phone number is (800) 641-4651.

What is Alpha Hospitalist Group Inc's specialty?

The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.

Is Alpha Hospitalist Group Inc enrolled in Medicare?

Yes. Alpha Hospitalist Group Inc is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Alpha Hospitalist Group Inc?

According to the CMS Revalidation Reassignment List (October 2026 release), 16 clinicians in 5 Medicare specialties reassign their Medicare billing to Alpha Hospitalist Group Inc. 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 Nurse Practitioner (9), Internal Medicine (4) and Family Practice (1). Of these, 1 practice at this address and 13 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Alpha Hospitalist Group Inc was last updated on February 15, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.