DR. DIANA L. FARMER MD
NPI 1033177167
Surgery in Sacramento, CA

Q: What is Diana Farmer's NPI number?

The NPI number for Diana Farmer is 1033177167. It was assigned to this individual provider in the NPPES registry on May 1, 2006.

Q: What is Diana Farmer's specialty?

The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.

Q: When was this NPI record last updated?

The NPPES record for Diana Farmer was last updated on March 30, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.

Active since May 01, 2006PECOS Enrolled

2221 STOCKTON BLVD., CYPRESS #3112, SACRAMENTO, CA 95817(916) 734-3190(916) 734-5119 Get Directions Write a Review

NPPES record last updated: March 30, 2012. Verified against the NPPES registry weekly; last sync: October 18, 2026.

On this page

About Dr. Diana L. Farmer Md NPPES

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

DR. DIANA L. FARMER MD (NPI 1033177167) is an individual surgery provider in Sacramento, California, licensed in California (G62158) and active in the NPI registry since May 2006. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1033177167

Entity TypeIndividualFemale

Primary Taxonomy208600000X

Provider Legal NameDR. DIANA L. FARMERCredential: MD

Location Address2221 STOCKTON BLVD., CYPRESS #3112Sacramento, CA 95817-1418

Mailing Address2221 Stockton Blvd., Cypress #3112Sacramento, CA 95817-1418 · (916) 734-3190 · Fax (916) 734-5119

Phone(916) 734-3190

Fax(916) 734-5119

Sole ProprietorNo

Enumeration DateMay 1, 2006

Last NPPES UpdateMarch 30, 2012

✔ NPI 1033177167 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtySurgeryAllopathic & Osteopathic Physicians

Taxonomy Code208600000X

License✔ Licensed in CA · G62158

Definition

A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.

Also ListedSurgery · Pediatric SurgeryTaxonomy 2086S0120X · License G62158 (CA)

Also ListedSurgery · Surgical OncologyTaxonomy 2086X0206X · License G62158 (CA)

2221 STOCKTON BLVD., Sacramento, CA 95817

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Other Identifiers 3

Medicaid0G6215800CA

Medicare UPING13617CA

Medicare PIN0G6215800CA

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Diana L. Farmer Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 Diana Farmer reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Regents Of The Univ Of Ca

Same address

Transplant Surgery

2221 STOCKTON BLVD
Sacramento, CA 95817

Reassigned Medicare billing, California enrollment
2,570 clinicians in this Medicare group

NPI 1013900075 (916) 734-7785

Shriners Hospitals For Children

0.3 mi

Anesthesiology

2425 STOCKTON BLVD
Sacramento, CA 95817

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

NPI 1114415361 (916) 453-2000

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 95817 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

$92.61 typical visit price

range $60.44 – $180.85

Typical copayment $23.15 (range $15.11 – $45.21)

Most-billed visit code 99203

Established Patient

$75.03 typical visit price

range $19.88 – $148.15

Typical copayment $18.75 (range $4.97 – $37.03)

Most-billed visit code 99213

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 3

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

DR. MICHAEL SHELDON WONG M.D.

Medical Genetics, Ph.D. Medical Genetics

2221 STOCKTON BLVD.
SACRAMENTO, CA 95817

Sacramento County (916) 734-2130

DR. MICHAEL SHELDON WONG M.D.

Plastic Surgery

2221 STOCKTON BLVD.
SACRAMENTO, CA 95817

Sacramento County (916) 734-2130

MONA GHANDOUR FLORES M.D.

Thoracic Surgery (Cardiothoracic Vascular Surgery)

2221 STOCKTON BLVD.
SACRAMENTO, CA 95817

Sacramento County (916) 734-2011

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 Diana Farmer's NPI number?

The NPI number for Diana Farmer is 1033177167. It was assigned to this individual provider in the NPPES registry on May 1, 2006.

Where is Diana Farmer located?

Diana Farmer practices at 2221 Stockton Blvd. Cypress #3112, Sacramento, CA 95817. The listed phone number is (916) 734-3190.

What is Diana Farmer's specialty?

The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.

Is Diana Farmer enrolled in Medicare?

Yes. Diana Farmer is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Diana Farmer's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Diana Farmer reassigns Medicare benefits to 2 organizations: Regents Of The Univ Of Ca (Sacramento, CA) and Shriners Hospitals For Children (Sacramento, 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 Diana Farmer'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 Diana Farmer was last updated on March 30, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.