Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Internal Medicine

Griffin G. Farrish, MD

Works at hospitals in Bogalusa, LA · Baton Rouge, LA · New Orleans, LA … · Louisiana

Summary

Dr. Griffin G. Farrish, MD is an internal medicine doctor at 1202 S Tyler St, Covington, LA 70433. Phone: (985) 898-3743. Accepts Medicare assignment. In 2024, Griffin G. Farrish had 292 Original Medicare patients and 543 services. NPI 1801423025. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

From official Medicare data

This page shows what Medicare's official clinician data says about Griffin G. Farrish, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Griffin G. Farrish accept Medicare assignment?
Yes. Medicare's clinician data says Griffin G. Farrish accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Griffin G. Farrish see?
In 2024, CMS data shows 292 Original Medicare patients and 543 services for Griffin G. Farrish. This counts Original Medicare only and measures volume, not quality.
What is Griffin G. Farrish's NPI number?
1801423025. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Griffin G. Farrish, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients292
Services billed to Medicare543
Different services or procedures7
Participating Medicare providerYes
Average age of these patients76

Most frequent services

  1. Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)164 services
  2. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)143 services
  3. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)92 services
  4. Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)72 services
  5. Hospital discharge day management, more than 30 minutes (99239)70 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High blood pressure75%
  • High cholesterol75%
  • Arthritis64%
  • Ischemic heart disease55%
  • Depression51%
  • Heart failure51%

Hospitals where Griffin G. Farrish works

Medicare's Facility Affiliation Data lists Griffin G. Farrish at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

Practice locations

Addresses where Griffin G. Farrish is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Griffin G. Farrish as a member of this group (CMS data updated October 2, 2026).

  • St Tammany Parish Hospital Service District No 1166 clinicians in the group

Specialties

Find other Internal Medicine doctors in Louisiana →

Other internal medicine doctors in Covington

Clinicians with the same Medicare primary specialty in Covington, LA — not a recommendation.

All internal medicine doctors in Covington →

Other clinicians in St Tammany Parish Hospital Service District No 1

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Medical schoolLouisiana State University School Of Medicine In New Orleans
Graduation year2020 (6 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1801423025
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians