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GALEN INPATIENT PHYSICIAN INC.
NPI 1083658223
Internal Medicine in Antioch, CA

Active since June 16, 2006
3901 LONE TREE WAY, ANTIOCH, CA 94509(925) 779-7200 Get Directions Write a Review

NPPES record last updated: August 20, 2007. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Galen Inpatient Physician Inc. NPPES

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

GALEN INPATIENT PHYSICIAN INC. (NPI 1083658223) is a healthcare organization registered as an internal medicine in Antioch, California and active in the NPI registry since June 2006. The organization lists Leslie Anglada, M.d, as its authorized official.

NPPES Registry Identity

NPI1083658223
Entity TypeOrganization
Primary Taxonomy207R00000X
Legal Business NameGALEN INPATIENT PHYSICIAN INC.
Location Address3901 LONE TREE WAYAntioch, CA 94509
Mailing Address2100 Powell Street, Ste 920Emeryville, CA 94608 · (510) 350-2777
Phone(925) 779-7200
Organization SubpartNo
Authorized OfficialLeslie AngladaM.d · (510) 350-2681
Enumeration DateJune 16, 2006
Last NPPES UpdateAugust 20, 2007
✔ NPI 1083658223 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.
3901 LONE TREE WAY, Antioch, CA 94509
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Other Identifiers 2

MedicaidGR0093520CA
Medicare PINZZZ25916ZCA

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 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)

Galen Inpatient Physician Inc. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

993

Medicare enrollment records show 993 clinicians reassign Medicare billing to Galen Inpatient Physician Inc., which bills Medicare for the services they deliver. Of these, 1 practice within 10 miles. Listed here are the 20 practicing nearest to this location.

Clinicians by Medicare Specialty 21

Internal Medicine442
Hospitalist357
Family Practice93
Nurse Practitioner48
Emergency Medicine15
Nephrology8
Critical Care (Intensivists)6
Endocrinology4
13 other specialties20

Nearest to this location (20)

See all 993
Nimish Patel, D.O.
Internal Medicine
NPI 1184901001
303 PINE PL
Danville, CA 94506
(650) 935-4173
✔ PECOS✔ Accepts Medicare6.7 mi
Jaspreet Garcha, DO
Hospitalist
NPI 1114547833
2700 GRANT ST STE 200
Concord, CA 94520
(922) 947-3312
✔ PECOS✔ Accepts Medicare13 mi
Daisy-Scarlett Maccallum, M.D
Hospitalist
NPI 1508120924
1450 TREAT BLVD # 160
Walnut Creek, CA 94597
(925) 296-9000
✔ PECOS✔ Accepts Medicare14 mi
Gaber Saleh
Family Practice
NPI 1407270549
1450 TREAT BLVD STE 320
Walnut Creek, CA 94597
(925) 296-9880
✔ PECOS✔ Accepts Medicare14 mi
Amrit Toor
Family Practice
NPI 1033775192
1450 TREAT BLVD # 160
Walnut Creek, CA 94597
(925) 296-9000
✔ PECOS✔ Accepts Medicare14 mi
Ashish Patel, M.D.
Hospitalist
NPI 1932413200
2605 CAMINO TASSAJARA UNIT 2645
Danville, CA 94526
(925) 376-5995
✔ PECOS15 mi
Joseph Mardanzai, MD
Internal Medicine
NPI 1043220031
11030 BOLLINGER CANYON RD STE 240
San Ramon, CA 94582
(925) 736-1000
✔ PECOS✔ Accepts Medicare16 mi
Robert Feren, M.D.
Hospitalist
NPI 1851453104
1220 ROSSMOOR PKWY
Walnut Creek, CA 94595
(925) 947-3393
✔ PECOS✔ Accepts Medicare16 mi
Kamaldip Ghei, M.D.
Internal Medicine
NPI 1366490120
1220 ROSSMOOR PKWY
Walnut Creek, CA 94595
(925) 947-3393
✔ PECOS✔ Accepts Medicare16 mi
Rajesh Joshi, M.D.
Hospitalist
NPI 1831365998
1220 ROSSMOOR PARKWAY
Walnut Creek, CA 94595
(925) 947-3312
✔ PECOS✔ Accepts Medicare16 mi
Paresh Matmari, M.D.
Hospitalist
NPI 1881603306
1220 ROSSMOOR PKWY
Walnut Creek, CA 94595
(925) 947-3312
✔ PECOS✔ Accepts Medicare16 mi
Tiffany King, D.O.
Hospitalist
NPI 1023386174
1220 ROSSMOOR PKWY
Walnut Creek, CA 94595
(925) 947-3393
✔ PECOS✔ Accepts Medicare16 mi
Daniel Fentress, MD
Family Practice
NPI 1649583071
2500 ALHAMBRA AVE
Martinez, CA 94553
(925) 370-5110
✔ PECOS✔ Accepts Medicare18 mi
Jennifer Stanziale, MD
Hospitalist
NPI 1215467543
2500 ALHAMBRA AVE
Martinez, CA 94553
(925) 370-5200
✔ PECOS18 mi
Roham Vatanparast, MD
Hospitalist
NPI 1518151497
5000 HOPYARD RD SUITE 100
Pleasanton, CA 94588
(925) 924-1600
✔ PECOS✔ Accepts Medicare21 mi
Kevin Rich, D.O.
Internal Medicine
NPI 1629253471
101 BODIN CIR 60MDG/SGOMI
Travis Afb, CA 94535
(707) 423-7342
✔ PECOS21 mi
Rinky Walia, M.D.
Internal Medicine
NPI 1093042491
101 BODIN CIR
Travis Afb, CA 94535
(707) 423-3000
✔ PECOS✔ Accepts Medicare21 mi
Son Nguyen, M.D.
Internal Medicine
NPI 1114119526
1525 WEBSTER ST A
Fairfield, CA 94533
(707) 423-9484
✔ PECOS✔ Accepts Medicare23 mi
Andrea Ngo, MD
Internal Medicine
NPI 1699863464
1200 B GALE WILSON BLVD
Fairfield, CA 94533
(707) 429-3600
✔ PECOS✔ Accepts Medicare23 mi
Pranay Bahuguna, M.D.
Internal Medicine
NPI 1174598932
3165 CHERRY VALLEY CIRCLE
Fairfield, CA 94534
(203) 583-2644
✔ PECOS✔ Accepts Medicare25 mi
See all 993 clinicians

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 Galen Inpatient Physician Inc.'s NPI number?

The NPI number for Galen Inpatient Physician Inc. is 1083658223. It was assigned to this organization in the NPPES registry on June 16, 2006.

Where is Galen Inpatient Physician Inc. located?

Galen Inpatient Physician Inc. is located at 3901 Lone Tree Way, Antioch, CA 94509. The listed phone number is (925) 779-7200.

What is Galen Inpatient Physician Inc.'s specialty?

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

Is Galen Inpatient Physician Inc. enrolled in Medicare?

Yes. Galen Inpatient Physician Inc. is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Galen Inpatient Physician Inc.?

According to the CMS Revalidation Reassignment List (October 2026 release), 993 clinicians in 21 Medicare specialties reassign their Medicare billing to Galen Inpatient Physician 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 Internal Medicine (442), Hospitalist (357) and Family Practice (93). Of these, 1 practice 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 Galen Inpatient Physician Inc. was last updated on August 20, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.