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SANTIAGO ROJAS PAEZ M.D.
NPI 1477840643
Anesthesiology in Stockton, CA

Active since July 07, 2011PECOS EnrolledAccepts Medicare Assignment
1800 N CALIFORNIA ST, STOCKTON, CA 95204(209) 943-2000 Get Directions Write a Review

NPPES record last updated: October 16, 2023. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Oct 16, 2023, Dec 8, 2021, Aug 7, 2019 (3 updates tracked since 2019).

About Santiago Rojas Paez M.d. NPPES

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

SANTIAGO ROJAS PAEZ M.D. (NPI 1477840643) is an individual anesthesiology provider in Stockton, California, licensed in California (A134935) and active in the NPI registry since July 2011. He is enrolled in Medicare PECOS, maintains a secondary practice location in Sacramento, and is a graduate of Other (2006).

NPPES Registry Identity

NPI1477840643
Entity TypeIndividualMale
Primary Taxonomy207L00000X
Provider Legal NameSANTIAGO ROJAS PAEZCredential: M.D.
Location Address1800 N CALIFORNIA STStockton, CA 95204-6019
Mailing Address325 Distel CirLos Altos, CA 94022-1408
Phone(209) 943-2000
Sole ProprietorNo
Medical School CMSOtherGraduated 2006
Enumeration DateJuly 7, 2011
Last NPPES UpdateOctober 16, 20233 updates tracked since enumeration
NPPES CertifiedOctober 16, 2023
✔ NPI 1477840643 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
Licenses✔ Licensed in CA · A134935✔ Licensed in NV · 16815
Definition
An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.
1800 N CALIFORNIA ST, Stockton, CA 95204
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Secondary Practice Location 1

Location 16600 Bruceville RdSacramento, CA 95823-4671 · Phone (916) 688-2000

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Santiago Rojas Paez M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID749562379
PECOS Enrollment IDI20211214001185
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 Reassignments

8

Medicare enrollment records show Santiago Rojas Paez reassigns Medicare billing to 8 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Permanente Medical Group Inc
3.3 mi
Internal Medicine
7373 WEST LANE
Stockton, CA 95210
  • Reassigned Medicare billing, California enrollment
  • 20,078 clinicians in this Medicare group
NPI 1548343510 (209) 476-2000
Anesthesia Services Of San Joaquin, P.C.
5.8 mi
Anesthesiology
500 W HOSPITAL RD
French Camp, CA 95231
  • Reassigned Medicare billing, California enrollment
  • Medicare enrollment name: Anesthesia Services Of San Joaquin PC
  • 217 clinicians in this Medicare group
NPI 1366778227 (877) 580-3144
Sutter Bay Medical Foundation
47 mi
Ambulatory Surgical
3120 KEARNEY ST
Fremont, CA 94538
NPI 1306241534 (650) 498-3600
University Of California San Francisco
66 mi
Surgery
400 PARNASSUS AVE, MCB 300
San Francisco, CA 94143
  • Reassigned Medicare billing, California enrollment
  • 5,645 clinicians in this Medicare group
NPI 1346329380 (415) 353-2161
Ucsf Medical Group Business Services
66 mi
Internal Medicine
400 PARNASSUS AVE
San Francisco, CA 94122
  • Reassigned Medicare billing, California enrollment
  • 5,544 clinicians in this Medicare group
NPI 1477624104 (415) 353-2808
University Anesthesia Medical Group
66 mi
Anesthesiology
505 PARNASSUS AVE
San Francisco, CA 94143
  • Reassigned Medicare billing, California enrollment
  • 723 clinicians in this Medicare group
NPI 1528137296 (415) 476-1000
Valley Regional Anesthesia Associates Inc
114 mi
Anesthesiology
7341 N 1ST ST STE 106
Fresno, CA 93720
  • Reassigned Medicare billing, California enrollment
  • 293 clinicians in this Medicare group
NPI 1578272415 (559) 289-4574
Valley Anesthesiology Consultants-Beckett-PLLC
368 mi
Anesthesiology
10120 S EASTERN AVE STE 100
Henderson, NV 89052
  • Reassigned Medicare billing, Nevada enrollment
  • 95 clinicians in this Medicare group
NPI 1437326857 (318) 924-5057

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

Areas of Expertise CMS Part B claims

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Insertion of artery tube for blood sampling or infusion through skin 36620
This procedure involves placing a small tube into an artery, usually in the wrist or elbow, to collect blood samples or administer medication. It's done under local anesthesia and is a common, safe practice.
27 services27 patients

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.

DEEPAK GIR MD
Student in an Organized Health Care Education/Training Program
1800 N CALIFORNIA ST
STOCKTON, CA 95204
San Joaquin County (209) 547-7177
PRIYADEEP KANG MD
Student in an Organized Health Care Education/Training Program
1800 N CALIFORNIA ST
STOCKTON, CA 95204
San Joaquin County (209) 547-7181
NANCY THI NGUYEN CF-SLP
Speech-Language Pathologist
1800 N CALIFORNIA ST
STOCKTON, CA 95204
San Joaquin County (209) 943-2000
DR. VALERIE DEJESUS MD
Anesthesiology
1800 N CALIFORNIA ST
STOCKTON, CA 95204
San Joaquin County (209) 547-5716
LARRY GEORGE OTTERSTETTER DO
Student in an Organized Health Care Education/Training Program
1800 N CALIFORNIA ST
STOCKTON, CA 95204
San Joaquin County (209) 547-7181
SHUBHPREET KAUR SOHAL
Nurse Practitioner (Family)
1800 N CALIFORNIA ST
STOCKTON, CA 95204
San Joaquin County (209) 466-0456
RONLI LEVI RD
Dietitian, Registered
1800 N CALIFORNIA ST
STOCKTON, CA 95204
San Joaquin County (209) 467-5356
JOSEPH HOWARD HOFFMAN DO
Emergency Medicine
1800 N CALIFORNIA ST
STOCKTON, CA 95204
San Joaquin County (209) 943-2000

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 Santiago Rojas Paez's NPI number?

The NPI number for Santiago Rojas Paez is 1477840643. It was assigned to this individual provider in the NPPES registry on July 7, 2011.

Where is Santiago Rojas Paez located?

Santiago Rojas Paez practices at 1800 N California St, Stockton, CA 95204. The listed phone number is (209) 943-2000.

What is Santiago Rojas Paez's specialty?

The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.

Is Santiago Rojas Paez enrolled in Medicare?

Yes. Santiago Rojas Paez is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Santiago Rojas Paez's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Santiago Rojas Paez reassigns Medicare benefits to 8 organizations: Permanente Medical Group Inc (Stockton, CA), Anesthesia Services Of San Joaquin, P.C. (French Camp, CA), Sutter Bay Medical Foundation (Fremont, CA), University Of California San Francisco (San Francisco, CA), Ucsf Medical Group Business Services (San Francisco, CA) and 3 more organizations, listed in the Medicare section above. Each 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 Santiago Rojas Paez'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 Santiago Rojas Paez was last updated on October 16, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.