Doctor profile · Federal record
Dr. Keith Guest, M.D.
Geriatric Medicine (Internal Medicine) Physician (CMS: Geriatric Medicine) · Hospice and Palliative Medicine (Internal Medicine) Physician · Lexington, SC
- NPI 1285630020
- Accepts Medicare
- MIPS 60.3 / 100 · 2023
- 30 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
Po Box 487
Lexington, SC 290710487
(803) 699-9073
fax (866) 527-0937
Credentials & registration
- NPI registered
- June 2005 — 21 yrs on file
- Profile last updated
- July 21, 2025
- Year of graduation
- 1996 — 30 yrs since
- Specialty taxonomy
- 207RG0300X — NUCC code
- State license (1)
- South Carolina #20934
- Medicaid
- SC #GP2916
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1285630020. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
137
Distinct HCPCS
4
Medicare allowed
$10,468
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
G0180 |
Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and | 63 | 55 | $49 | |
G0179 |
Physician or allowed practitioner re-certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians a | 35 | 24 | $38 | |
G0438 |
Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit | 21 | 21 | $155 | |
G0438 |
Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit | 18 | 18 | $155 |
In context: peer comparison
Among 1 peers in Lexington Geriatric Medicine (Internal Medicine) Physician, average services per provider: 34. This provider delivers 4.0× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
4,537
Patients
502
Total drug cost
$125,719
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Amlodipine Besylate | Generic | 565 | 59 | $3,327 |
| Atorvastatin Calcium | Generic | 528 | 67 | $5,571 |
| Furosemide | Generic | 398 | 40 | $2,361 |
| Levothyroxine Sodium | Generic | 378 | 39 | $4,876 |
| Gabapentin | Generic | 372 | 36 | $4,908 |
| Pantoprazole Sodium | Generic | 276 | 32 | $9,271 |
| Eliquis (Apixaban) | Brand | 275 | 28 | $76,984 |
| Metoprolol Tartrate | Generic | 272 | 28 | $1,758 |
| Omeprazole | Generic | 269 | 30 | $2,460 |
| Potassium Chloride | Generic | 245 | 29 | $5,199 |
Frequently asked questions
What is Dr. Keith Guest's medical specialty?
Dr. Keith Guest practices Geriatric Medicine (Internal Medicine) Physician in Lexington, SC.
Where does Dr. Keith Guest practice?
Dr. Keith Guest practices at Po Box 487, Lexington, SC 290710487. Office phone: 8036999073.
What is Dr. Keith Guest's NPI?
Dr. Keith Guest's National Provider Identifier (NPI) is 1285630020, issued by NPPES.
Does Dr. Keith Guest accept Medicare assignment?
Yes. Dr. Keith Guest accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Keith Guest commonly perform?
Top Medicare-reported procedures in 2023: Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and (HCPCS G0180); Physician or allowed practitioner re-certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians a (HCPCS G0179); Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit (HCPCS G0438). Source: CMS Medicare Physician & Other Practitioners file.