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

AMERICAN SPECIALTY PHYSICIANS GROUP INC
NPI 1568992923
Emergency Medicine in Modesto, CA

Active since June 18, 2017
700 17TH ST STE 205, MODESTO, CA 95354(209) 248-7851(209) 248-7825 Get Directions Write a Review

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

Record update history: Sep 25, 2026, May 28, 2026, Mar 19, 2026 and 5 more (8 updates tracked since 2017).

About American Specialty Physicians Group Inc NPPES

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

AMERICAN SPECIALTY PHYSICIANS GROUP INC (NPI 1568992923) is a healthcare organization registered as an emergency medicine in Modesto, California and active in the NPI registry since June 2017. The organization maintains 3 additional practice locations and lists Tammy Jean Thompson, Vp Finance/cfo, as its authorized official.

NPPES Registry Identity

NPI1568992923
Entity TypeOrganization
Primary Taxonomy207P00000X
Legal Business NameAMERICAN SPECIALTY PHYSICIANS GROUP INC
Location Address700 17TH ST STE 205Modesto, CA 95354-1249
Mailing AddressPo Box 80893City Of Industry, CA 91716-8420 · (877) 346-2211 · Fax (407) 324-4727
Fax(209) 248-7825
Organization SubpartNo
Authorized OfficialTammy Jean ThompsonVp Finance/cfo · (209) 287-6308
Enumeration DateJune 18, 2017
Last NPPES UpdateSeptember 25, 20268 updates tracked since enumeration
NPPES CertifiedSeptember 25, 2026
✔ NPI 1568992923 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 4

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
License✔ Licensed in CA · A102350
Definition
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
Also ListedInternal MedicineTaxonomy 207R00000X
Also ListedInternal Medicine · Critical Care MedicineTaxonomy 207RC0200X
Also ListedHospitalistTaxonomy 208M00000X
700 17TH ST STE 205, Modesto, CA 95354

Secondary Practice Locations 3

Location 1240 Spruce StGridley, CA 95948-2216 · Phone (209) 248-7851
Location 2525 W Acacia StStockton, CA 95203-2405 · Phone (209) 248-7851
Location 31250 E Almond AveMadera, CA 93637-5606 · Phone (209) 248-7851

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)

American Specialty Physicians Group Inc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

179

Medicare enrollment records show 179 clinicians reassign Medicare billing to American Specialty Physicians Group Inc, which bills Medicare for the services they deliver. Of these, 8 practice within 10 miles. Listed here are the 20 practicing nearest to this location.

Clinicians by Medicare Specialty 20

Emergency Medicine52
Internal Medicine39
Nurse Practitioner33
Family Practice18
Hospitalist12
Pulmonary Disease4
Critical Care (Intensivists)3
General Surgery3
12 other specialties15

Nearest to this location (20)

See all 179
Internal Medicine
NPI 1174699755
803 COFFEE RD STE 6
Modesto, CA 95355
(626) 888-6000
✔ PECOS1.1 mi
Internal Medicine
NPI 1609106715
608 E ORANGEBURG AVE
Modesto, CA 95350
(347) 891-4023
✔ PECOS✔ Accepts Medicare1.5 mi
Family Practice
NPI 1851561203
1441 FLORIDA AVE HOSPITALISTS OF MODESTO
Modesto, CA 95350
(203) 979-6841
✔ PECOS✔ Accepts Medicare1.6 mi
Emergency Medicine
NPI 1497813893
1700 COFFEE RD
Modesto, CA 95355
(209) 526-4500
✔ PECOS✔ Accepts Medicare2.0 mi
Nurse Practitioner
NPI 1689032815
1608 TULLY RD
Modesto, CA 95350
(209) 849-6543
✔ PECOS✔ Accepts Medicare2.1 mi
Nurse Practitioner
NPI 1780911248
2501 MCHENRY AVE SUITE F
Modesto, CA 95350
(209) 522-9054
✔ PECOS✔ Accepts Medicare2.4 mi
Internal Medicine
NPI 1467695452
4601 DALE RD
Modesto, CA 95356
(209) 735-5000
✔ PECOS✔ Accepts Medicare5.6 mi
Nurse Practitioner
NPI 1649888173
2290 MCCAFFREY LN
Riverbank, CA 95367
(209) 614-7455
✔ PECOS✔ Accepts Medicare6.1 mi
Gastroenterology
NPI 1194780999
981 E TUOLUMNE RD SUITE 106
Turlock, CA 95382
(209) 656-6800
✔ PECOS12 mi
Nurse Practitioner
NPI 1124511464
825 DELBON AVE
Turlock, CA 95382
(209) 664-4655
✔ PECOS✔ Accepts Medicare12 mi
Internal Medicine
NPI 1083035943
825 DELBON AVE
Turlock, CA 95382
(209) 576-3525
✔ PECOS✔ Accepts Medicare12 mi
Nurse Practitioner
NPI 1366872822
6601 TOLUCA AVE
Winton, CA 95388
(209) 658-5186
✔ PECOS✔ Accepts Medicare27 mi
Thoracic Surgery
NPI 1548418759
530 W ACACIA ST STE 1
Stockton, CA 95203
(209) 242-7098
✔ PECOS✔ Accepts Medicare28 mi
General Surgery
NPI 1619113925
1901 N CALIFORNIA ST
Stockton, CA 95204
(209) 946-6800
✔ PECOS✔ Accepts Medicare28 mi
Emergency Medicine
NPI 1619269974
333 MERCY AVE
Merced, CA 95340
(209) 564-5130
✔ PECOS✔ Accepts Medicare36 mi
Hospitalist
NPI 1609372341
333 MERCY AVE
Merced, CA 95340
(209) 564-5000
✔ PECOS✔ Accepts Medicare36 mi
Diagnostic Radiology
NPI 1659697092
768 MOUNTAIN RANCH RD
San Andreas, CA 95249
(209) 754-2573
✔ PECOS✔ Accepts Medicare42 mi
Orthopedic Surgery
NPI 1063904829
125 N JACKSON AVE STE 205
San Jose, CA 95116
(530) 622-1441
✔ PECOS✔ Accepts Medicare51 mi
Internal Medicine
NPI 1144804329
36808 OAK ST
Fremont, CA 94536
(510) 203-9392
✔ PECOS✔ Accepts Medicare57 mi
Family Practice
NPI 1093208779
101 BODIN CIR
Travis Afb, CA 94535
(707) 423-3863
✔ PECOS✔ Accepts Medicare68 mi
See all 179 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 American Specialty Physicians Group Inc's NPI number?

The NPI number for American Specialty Physicians Group Inc is 1568992923. It was assigned to this organization in the NPPES registry on June 18, 2017.

Where is American Specialty Physicians Group Inc located?

American Specialty Physicians Group Inc is located at 700 17th St Ste 205, Modesto, CA 95354. The listed phone number is (209) 248-7851.

What is American Specialty Physicians Group Inc's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

Is American Specialty Physicians Group Inc enrolled in Medicare?

Yes. American Specialty Physicians Group Inc is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through American Specialty Physicians Group Inc?

According to the CMS Revalidation Reassignment List (October 2026 release), 179 clinicians in 20 Medicare specialties reassign their Medicare billing to American Specialty Physicians 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 Emergency Medicine (52), Internal Medicine (39) and Nurse Practitioner (33). Of these, 8 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 American Specialty Physicians Group Inc was last updated on September 25, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 32 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.