STEPHEN G CONNOLLY MD
NPI 1487688818
Pathology - Anatomic Pathology & Clinical Pathology in Modesto, CA

Q: What is Stephen Connolly's NPI number?

The NPI number for Stephen Connolly is 1487688818. It was assigned to this individual provider in the NPPES registry on July 10, 2006.

Q: What is Stephen Connolly's specialty?

The primary specialty registered for this NPI is Pathology, specializing in Anatomic Pathology & Clinical Pathology, with taxonomy code 207ZP0102X.

Q: When was this NPI record last updated?

The NPPES record for Stephen Connolly was last updated on February 24, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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 July 10, 2006PECOS EnrolledAccepts Medicare Assignment

4301 N STAR WAY, MODESTO, CA 95356(209) 577-1200(209) 577-6517 Get Directions Write a Review

NPPES record last updated: February 24, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

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About Stephen G Connolly Md NPPES

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

STEPHEN G CONNOLLY MD (NPI 1487688818) is an individual anatomic pathology & clinical pathology provider in Modesto, California, licensed in California (G58821) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS and is a graduate of Creighton University School Of Medicine (1985).

NPPES Registry Identity

NPI1487688818

Entity TypeIndividualMale

Primary Taxonomy207ZP0102X

Provider Legal NameSTEPHEN G CONNOLLYCredential: MD

Location Address4301 N STAR WAYModesto, CA 95356-9262

Mailing Address3116 W March Ln Ste 200Stockton, CA 95219-2370 · (209) 473-6555 · Fax (209) 473-6544

Phone(209) 577-1200

Fax(209) 577-6517

Sole ProprietorNo

Medical School CMSCreighton University School Of MedicineGraduated 1985

Enumeration DateJuly 10, 2006

Last NPPES UpdateFebruary 24, 2025

NPPES CertifiedFebruary 24, 2025

✔ NPI 1487688818 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPathology · Anatomic Pathology & Clinical PathologyAllopathic & Osteopathic Physicians

Taxonomy Code207ZP0102X

License✔ Licensed in CA · G58821

Definition

A pathologist deals with the causes and nature of disease and contributes to diagnosis, prognosis and treatment through knowledge gained by the laboratory application of the biologic, chemical and physical sciences. A pathologist uses information gathered from the microscopic examination of tissue specimens, cells and body fluids, and from clinical laboratory tests on body fluids and secretions for the diagnosis, exclusion and monitoring of disease.

Also ListedPathology · CytopathologyTaxonomy 207ZC0500X · License G588210 (CA)

4301 N STAR WAY, Modesto, CA 95356

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Other Identifiers 2

OtherG58821CA · State License

Medicaid00G588210CA

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

Stephen G Connolly Md 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 ID446274740

PECOS Enrollment IDI20081202000893

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 Stephen Connolly reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Yosemite Pathology Medical Group, Inc

Same address

Anatomic Pathology & Clinical Pathology

4301 N STAR WAY
Modesto, CA 95356

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

NPI 1598760985 (209) 577-1200

County Of San Joaquin

12 mi

Multi-Specialty

283 SPRECKELS AVE
Manteca, CA 95336

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

NPI 1417407636 (209) 953-6400

San Joaquin Faculty Medical Group

20 mi

Internal Medicine

500 HOSPITAL RD
French Camp, CA 95231

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

NPI 1225063761 (209) 473-6555

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 95356 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

$133.94 typical visit price

range $58.87 – $176.60

Typical copayment $33.48 (range $14.71 – $44.15)

Most-billed visit code 99204

Established Patient

$103.36 typical visit price

range $19.28 – $144.60

Typical copayment $25.84 (range $4.82 – $36.15)

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 20

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

DR. SCOTT GOODWIN SILVEIRA M. D.

Pathology (Anatomic Pathology & Clinical Pathology)