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ROBERT GARETH GISH M.D.
NPI 1548281322
Internal Medicine - Hepatology in Folsom, CA

Active since July 21, 2006PECOS EnrolledAccepts Medicare Assignment
1580 CREEKSIDE DR STE 220, FOLSOM, CA 95630(916) 986-4444(916) 983-8563 Get Directions Write a Review

NPPES record last updated: February 25, 2026. Verified against the NPPES registry weekly; last sync: November 08, 2026.

Record update history: Nov 7, 2023, Nov 2, 2021, Jun 30, 2020 and 2 more (5 updates tracked since 2020).

About Robert Gareth Gish M.d. NPPES

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

ROBERT GARETH GISH M.D. (NPI 1548281322) is an individual hepatology provider in Folsom, California, licensed in California (G45632) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS, maintains 3 additional practice locations, and is a graduate of University Of Kansas School Of Med (kc/wich/sal) (1980).

NPPES Registry Identity

NPI1548281322
Entity TypeIndividualMale
Primary Taxonomy207RI0008X
Provider Legal NameROBERT GARETH GISHCredential: M.D.
Location Address1580 CREEKSIDE DR STE 220Folsom, CA 95630-3888
Mailing Address6022 La Jolla Mesa DrLa Jolla, CA 92037-7814 · (858) 229-9865
Phone(916) 986-4444
Fax(916) 983-8563
Sole ProprietorNo
Medical School CMSUniversity Of Kansas School Of Med (kc/wich/sal)Graduated 1980
Enumeration DateJuly 21, 2006
Last NPPES UpdateFebruary 25, 20265 updates tracked since enumeration
NPPES CertifiedFebruary 25, 2026
✔ NPI 1548281322 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyInternal Medicine · HepatologyAllopathic & Osteopathic Physicians
Taxonomy Code207RI0008X
License✔ Licensed in CA · G45632
Definition
The discipline of Hepatology encompasses the structure, function, and diseases of the liver and biliary tract. The American Board of Internal Medicine considers Hepatology part of the subspecialty of gastroenterology. Physicians who identify themselves as Hepatologists usually, but not always, have been trained in gastrointestinal programs.
Also ListedInternal Medicine · GastroenterologyTaxonomy 207RG0100X · License G45632 (CA)
Also ListedInternal Medicine · Transplant HepatologyTaxonomy 207RT0003X · License 6940 (NV)
1580 CREEKSIDE DR STE 220, Folsom, CA 95630
Open in Google Maps ↗

Secondary Practice Locations 3

Location 12331 Montpelier Dr Ste BSan Jose, CA 95116-1673 · Phone (408) 347-9001 · Fax (408) 347-9004
Location 2901 Rancho Ln Ste 250Las Vegas, NV 89106-3835 · Phone (702) 383-2224 · Fax (702) 383-1876
Location 3231 OConnor DrSan Jose, CA 95128-1624 · Phone (408) 347-9001 · Fax (408) 347-9004

Other Identifiers 1

Medicaid00G456320CA

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

Robert Gareth Gish 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 ID2769482140
PECOS Enrollment IDI20090114000521
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

7

Medicare enrollment records show Robert Gish reassigns Medicare billing to 7 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Gastroenterology Medical Clinic
Same address
Specialist
1580 CREEKSIDE DR STE 220
Folsom, CA 95630
  • Reassigned Medicare billing, California enrollment
  • 11 clinicians in this Medicare group
NPI 1578741401 (916) 983-4444
Providence Medical Foundation
67 mi
Obstetrics & Gynecology
1100 TRANCAS ST, SUITE 209
Napa, CA 94558
  • Reassigned Medicare billing, California enrollment
  • 1,699 clinicians in this Medicare group
NPI 1205131950 (707) 251-1850
San Jose Gastroenterology, Inc.
98 mi
Gastroenterology
2331 MONTPELIER DR STE B
San Jose, CA 95116
  • Reassigned Medicare billing, California enrollment
  • 16 clinicians in this Medicare group
NPI 1578586731 (408) 347-9001
Faculty Physicians And Surgeons Of Llusm
325 mi
Neurological Surgery
615 WEST AVE Q, SUITE E
Palmdale, CA 93551
  • Reassigned Medicare billing, California enrollment
  • 2,584 clinicians in this Medicare group
NPI 1679754634 (909) 558-3111
University Medical Center Of Southern Nevada
364 mi
Urgent Care
5785 CENTENNIAL CENTER BLVD STE 190
Las Vegas, NV 89149
  • Reassigned Medicare billing, Nevada enrollment
  • 522 clinicians in this Medicare group
NPI 1891357901 (702) 383-6270
Regents Of The University Of California
465 mi
Allergy & Immunology
200 W ARBOR DR
San Diego, CA 92103
  • Reassigned Medicare billing, California enrollment
  • 1,051 clinicians in this Medicare group
NPI 1487772380 (800) 926-8273
La Maestra Family Clinic, Inc.
467 mi
Federally Qualified Health Center (FQHC)
4157 FAIRMOUNT AVE
San Diego, CA 92105
  • Reassigned Medicare billing, California enrollment
  • 102 clinicians in this Medicare group
NPI 1164167656 (619) 285-7097

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 5

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 high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
156 services88 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.
49 services49 patients
Ultrasound scan of organ tissue for measuring elasticity 76981
An ultrasound scan of organ tissue measures elasticity, or flexibility. This non-invasive procedure uses sound waves to create images of the inside of your body. It helps in assessing the health of various organs by detecting changes in their stiffness or softness.
20 services20 patients
Telephone medical discussion with physician, 21-30 minutes 99443
This service involves a 21-30 minute phone conversation with a physician. It's a chance for you to discuss your health concerns, symptoms or treatment plans. It's similar to an in-person consultation, but conducted over the phone for your convenience and safety.
18 services13 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.
11 services11 patients

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.

KANAT RANSIBRAHMANAKUL M.D.
Internal Medicine
1580 CREEKSIDE DR STE 220
FOLSOM, CA 95630
Sacramento County (916) 983-4444
GASTROENTEROLOGY MEDICAL CLINIC
Specialist
1580 CREEKSIDE DR STE 220
FOLSOM, CA 95630
Sacramento County (916) 983-4444
ROBERT ERICK PECHA M.D.
Specialist
1580 CREEKSIDE DR STE 220
FOLSOM, CA 95630
Sacramento County (530) 644-6430
DHRUV PATEL M.D.
Internal Medicine (Gastroenterology)
1580 CREEKSIDE DR STE 220
FOLSOM, CA 95630
Sacramento County (916) 734-2737

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 Robert Gish's NPI number?

The NPI number for Robert Gish is 1548281322. It was assigned to this individual provider in the NPPES registry on July 21, 2006.

Where is Robert Gish located?

Robert Gish practices at 1580 Creekside Dr Ste 220, Folsom, CA 95630. The listed phone number is (916) 986-4444.

What is Robert Gish's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Hepatology, with taxonomy code 207RI0008X.

Is Robert Gish enrolled in Medicare?

Yes. Robert Gish 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 Robert Gish's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Robert Gish reassigns Medicare benefits to 7 organizations: Gastroenterology Medical Clinic (Folsom, CA), Providence Medical Foundation (Napa, CA), San Jose Gastroenterology, Inc. (San Jose, CA), Faculty Physicians And Surgeons Of Llusm (Palmdale, CA), University Medical Center Of Southern Nevada (Las Vegas, NV) and 2 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 Robert Gish'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 Robert Gish was last updated on February 25, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.