Garfield Grandison, M.D.
NPI 1598884041 · Gastroenterology Physician · Ashland, KY
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Garfield Grandison, M.D. is a Gastroenterology Physician provider in Ashland, KY (NPI 1598884041).
Provider details
- NPI number
- 1598884041
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 35.132779 (OH)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
615 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Diagnostic Exam of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43235 | 99 | $89 |
| Removal of Polyps Or Growths of Large Bowel Using an Endoscope With Mechanical Snare45385 | 83 | $214 |
| Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239 | 71 | $89 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 52 | $122 |
| Diagnostic Exam of Large Bowel Using a Flexible Endoscope45378 | 40 | $161 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 8 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Sodium Chloride/Nahco3/Kcl/Pegbrand: Peg 3350-Electrolyte | 136 | 134 |
| Pantoprazole Sodium | 34 | 28 |
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Gavilyte-G | 16 | 16 |
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Peg-3350 and Electrolytes | 16 | 16 |
| Sodium, Potassium,mag Sulfatesbrand: Sod Sulf-Potass Sulf-Mag Sulf | 16 | 16 |
| Dicyclomine Hcl | 13 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$115 across 7 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 1279 Kinney LanePortsmouth, OH 45662-3167Phone: (740) 353-8100Fax: (740) 353-8908
Registry dates
- Enumerated
- 2007-03-28
- Last updated
- 2022-03-15
- Certified
- 2022-03-03
Frequently asked questions
- What is Garfield Grandison's NPI number?
- Garfield Grandison's National Provider Identifier (NPI) is 1598884041, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Garfield Grandison's specialty?
- Garfield Grandison is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Garfield Grandison located?
- Garfield Grandison's practice location on file with NPPES is 613 23rd St Ste 430, Ashland, KY 41101-2885.
- What is Garfield Grandison's phone number?
- The practice phone number listed in the NPPES registry for Garfield Grandison is (606) 408-8200.
- Does Garfield Grandison accept Medicare?
- Garfield Grandison is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Garfield Grandison's NPI active?
- Yes — Garfield Grandison's NPI (1598884041) is active in the NPPES registry as of the last update on 2022-03-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.