JAMES SANTIAGO GRISOLIA M.D.INC
NPI 1336102359
Psychiatry & Neurology - Neurology in San Diego, CA

Q: What is James Grisolia's NPI number?

The NPI number for James Grisolia is 1336102359. It was assigned to this individual provider in the NPPES registry on April 10, 2006.

Q: What is James Grisolia's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Neurology, with taxonomy code 2084N0400X.

Q: When was this NPI record last updated?

The NPPES record for James Grisolia was last updated on March 26, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 months 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.

Active since April 10, 2006PECOS EnrolledAccepts Medicare Assignment

4033 3RD AVE STE 204, SAN DIEGO, CA 92103(619) 297-1155 Get Directions Write a Review

NPPES record last updated: March 26, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

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About James Santiago Grisolia M.d.inc NPPES

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

JAMES SANTIAGO GRISOLIA M.D.INC (NPI 1336102359) is an individual neurology provider in San Diego, California, licensed in California (G42884) and active in the NPI registry since April 2006. He is enrolled in Medicare PECOS and is a graduate of University Of California, San Diego School Of Medicine (1979).

NPPES Registry Identity

NPI1336102359

Entity TypeIndividualMale

Primary Taxonomy2084N0400X

Provider Legal NameJAMES SANTIAGO GRISOLIACredential: M.D.INC

Location Address4033 3RD AVE STE 204San Diego, CA 92103-2130

Mailing Address4033 3rd Ave, Suite 410San Diego, CA 92103-2117 · (619) 297-1155

Phone(619) 297-1155

Sole ProprietorNo

Medical School CMSUniversity Of California, San Diego School Of MedicineGraduated 1979

Enumeration DateApril 10, 2006

Last NPPES UpdateMarch 26, 2025

NPPES CertifiedMarch 26, 2025

✔ NPI 1336102359 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · NeurologyAllopathic & Osteopathic Physicians

Taxonomy Code2084N0400X

License✔ Licensed in CA · G42884

Definition

A Neurologist specializes in the diagnosis and treatment of diseases or impaired function of the brain, spinal cord, peripheral nerves, muscles, autonomic nervous system, and blood vessels that relate to these structures.

4033 3RD AVE STE 204, San Diego, CA 92103

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Other Identifiers 1

Medicaid00G428840CA

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

James Santiago Grisolia M.d.inc 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 ID4688867781

PECOS Enrollment IDI20101021000638

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

Medicare enrollment records show James Grisolia reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

James Santiago Grisolia, M.D. Inc

Same address

Neurology

4033 3RD AVE STE 204
San Diego, CA 92103

Reassigned Medicare billing, California enrollment

NPI 1801933684 (619) 297-1155

On Call Specialists Medical Group Of San Diego, Inc.

0.1 mi

Specialist

4077 FIFTH AVE
San Diego, CA 92103

Reassigned Medicare billing, California enrollment
218 clinicians in this Medicare group

NPI 1962175836 (619) 294-8111

Emergency And Acute Care Medical Corporation

3.4 mi

Emergency Medicine

7901 FROST ST
San Diego, CA 92123

Reassigned Medicare billing, California enrollment
1,437 clinicians in this Medicare group

NPI 1437103942 (858) 939-3400

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 4

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.

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

193 services117 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

95 services68 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

33 services33 patients

New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205

This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.

33 services33 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92103 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$140.22 typical visit price

range $62.10 – $184.71

Typical copayment $35.05 (range $15.52 – $46.17)

Most-billed visit code 99204

Established Patient

$108.42 typical visit price

range $20.62 – $151.42

Typical copayment $27.10 (range $5.15 – $37.85)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 4

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

CITADEL SURGICAL INC

Surgery

4033 3RD AVE STE 204
SAN DIEGO, CA 92103

San Diego County (858) 395-6565

TORREY ANESTHESIA GROUP PC

Anesthesiology

4033 3RD AVE STE 204
SAN DIEGO, CA 92103

San Diego County (619) 324-3173

DR. BRET JAMES LANGENBERG DO, FACS

Surgery

4033 3RD AVE STE 204
SAN DIEGO, CA 92103

San Diego County (619) 295-8677

JAMES SANTIAGO GRISOLIA, M.D. INC

Psychiatry & Neurology (Neurology)

4033 3RD AVE STE 204
SAN DIEGO, CA 92103

San Diego County (619) 297-1155

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 James Grisolia's NPI number?

The NPI number for James Grisolia is 1336102359. It was assigned to this individual provider in the NPPES registry on April 10, 2006.

Where is James Grisolia located?

James Grisolia practices at 4033 3rd Ave Ste 204, San Diego, CA 92103. The listed phone number is (619) 297-1155.

What is James Grisolia's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Neurology, with taxonomy code 2084N0400X.

Is James Grisolia enrolled in Medicare?

Yes. James Grisolia 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 James Grisolia's services?

According to the CMS Revalidation Reassignment List (October 2026 release), James Grisolia reassigns Medicare benefits to 3 organizations: James Santiago Grisolia, M.D. Inc (San Diego, CA), On Call Specialists Medical Group Of San Diego, Inc. (San Diego, CA) and Emergency And Acute Care Medical Corporation (San Diego, CA). 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 James Grisolia'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 James Grisolia was last updated on March 26, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 months 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.