DR. MERLE RAY SOGGE M.D.
NPI 1619993243
Internal Medicine - Gastroenterology in Fairfield, CA

Active since July 15, 2006PECOS EnrolledAccepts Medicare Assignment
1525 WEBSTER ST, SUITE A, FAIRFIELD, CA 94533(707) 423-2506 Get Directions Write a Review

NPPES record last updated: March 3, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Mar 3, 2025, Dec 20, 2021 (2 updates tracked since 2021).

About Dr. Merle Ray Sogge M.d. NPPES

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

DR. MERLE RAY SOGGE M.D. (NPI 1619993243) is an individual gastroenterology provider in Fairfield, California, licensed in California (G35092) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS, maintains a secondary practice location in Yuma, and is a graduate of Oregon Health Sciences University School Of Medicine (1975).

NPPES Registry Identity

NPI1619993243
Entity TypeIndividualMale
Primary Taxonomy207RG0100X
Provider Legal NameDR. MERLE RAY SOGGECredential: M.D.
Location Address1525 WEBSTER ST, SUITE AFairfield, CA 94533-4997
Mailing Address1525 Webster St, Suite AFairfield, CA 94533-4997 · (707) 423-2506
Sole ProprietorNo
Medical School CMSOregon Health Sciences University School Of MedicineGraduated 1975
Enumeration DateJuly 15, 2006
Last NPPES UpdateMarch 3, 20252 updates tracked since enumeration
NPPES CertifiedMarch 3, 2025
✔ NPI 1619993243 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code207RG0100X
Licenses✔ Licensed in CA · G35092✔ Licensed in AZ · 76161
Definition
An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.
1525 WEBSTER ST, Fairfield, CA 94533

Secondary Practice Location 1

Location 11390 W 16th StYuma, AZ 85364-4430 · Phone (928) 344-4325

Other Identifiers 2

Medicaid00G350921CA
Medicaid00G350920CA

Accepted Insurance

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

Dr. Merle Ray Sogge 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 ID1759340664
PECOS Enrollment IDI20250903002954
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

4

Medicare enrollment records show Merle Sogge reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Internal Medicine
975 SERENO DRIVE
Vallejo, CA 94589
  • Reassigned Medicare billing, California enrollment
  • 20,078 clinicians in this Medicare group
General Acute Care Hospital
2500 ALHAMBRA AVE
Martinez, CA 94553
  • Reassigned Medicare billing, California enrollment
  • 530 clinicians in this Medicare group
Internal Medicine
4701 MANATEE AVE W STE 100
Bradenton, FL 34209
  • Reassigned Medicare billing, Florida enrollment
  • 40 clinicians in this Medicare group
Internal Medicine
4701 MANATEE AVE W STE 200
Bradenton, FL 34209
  • Reassigned Medicare billing, Florida enrollment
  • 23 clinicians in this Medicare group

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 94533 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
$145.83 typical visit price
range $65.02 – $191.95
Typical copayment $36.45 (range $16.25 – $47.98)
Most-billed visit code 99204
Established Patient
$113.05 typical visit price
range $21.86 – $157.69
Typical copayment $28.26 (range $5.46 – $39.42)
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 9

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

Internal Medicine
1525 WEBSTER ST, A
FAIRFIELD, CA 94533
Dentist (Periodontics)
1525 WEBSTER ST, SUITE F
FAIRFIELD, CA 94533
Internal Medicine (Pulmonary Disease)
1525 WEBSTER ST, SUITE A
FAIRFIELD, CA 94533
Orthopaedic Surgery
1525 WEBSTER ST, SUITE A
FAIRFIELD, CA 94533
Family Medicine
1525 WEBSTER ST, SUITE B
FAIRFIELD, CA 94533
Orthotic Fitter
1525 WEBSTER ST, SUITE E
FAIRFIELD, CA 94533
Internal Medicine
1525 WEBSTER ST, STE A
FAIRFIELD, CA 94533
Orthotic Fitter
1525 WEBSTER ST, STE. E
FAIRFIELD, CA 94533

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 Merle Sogge's NPI number?

The NPI number for Merle Sogge is 1619993243. It was assigned to this individual provider in the NPPES registry on July 15, 2006.

Where is Merle Sogge located?

Merle Sogge practices at 1525 Webster St Suite A, Fairfield, CA 94533. The listed phone number is (707) 423-2506.

What is Merle Sogge's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Is Merle Sogge enrolled in Medicare?

Yes. Merle Sogge 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 Merle Sogge's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Merle Sogge reassigns Medicare benefits to 4 organizations: Permanente Medical Group Inc (Vallejo, CA), Contra Costa County (Martinez, CA), Inspire Medical Care PA (Bradenton, FL) and Post Acute Specialists Of Florida PLLC (Bradenton, FL). 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 Merle Sogge's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Merle Sogge accept?

Health plans from Florida Blue (BlueCross BlueShield FL), Florida Blue HMO (a BlueCross BlueShield FL company) and Oscar Health Maintenance Organization of Florida list Merle Sogge as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Merle Sogge was last updated on March 3, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 20 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.