Doctor profile · Federal record
Dr. Erika Grigg, M.D.
Gastroenterology Physician (CMS: Gastroenterology) · Internal Medicine Physician · Kingsport, TN
- NPI 1487774410
- Accepts Medicare
- 21 yrs in practice
- Licensed in 2 states
- Female
- Group practice
- No sanctions
Practice & contact
Operates at 3 locations .
- Primary practice
-
135 W Ravine RD, Suite 3A
Kingsport, TN 376603847
(423) 246-6777
fax (423) 246-7766 - Additional location
-
105 W Stone Dr # 2B
Kingsport, TN 376603365
(423) 578-1595
fax (423) 578-1596 - Additional location
-
240 Medical Park Blvd Ste 2700
Bristol, TN 376207352
(423) 274-6365
fax (423) 990-2492
Credentials & registration
- NPI registered
- March 2007 — 19 yrs on file
- Profile last updated
- May 25, 2023
- Year of graduation
- 2005 — 21 yrs since
- Specialty taxonomy
- 207RG0100X — NUCC code
- State licenses (2)
- Tennessee #048179 · Georgia #061438
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1487774410. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,053
Distinct HCPCS
10
Medicare allowed
$76,465
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99439 |
Chronic care management services for two or more chronic conditions, additional 20 minutes of clinical staff time directed by health care professional, per calendar month | 371 | 50 | $44 | |
99490 |
Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month | 217 | 50 | $58 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 142 | 116 | $118 | |
88305 |
Pathology examination of tissue using a microscope, intermediate complexity | 128 | 67 | $31 | |
45385 |
Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 43 | 43 | $236 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 43 | 40 | $85 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 31 | 31 | $156 | |
43239 |
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 27 | 27 | $114 | |
43450 |
Dilation of esophagus | 17 | 17 | $38 | |
45378 |
Diagnostic exam of large bowel using a flexible endoscope | 12 | 12 | $171 |
In context: peer comparison
Among 6 peers in Kingsport Gastroenterology Physician, average services per provider: 90. This provider delivers 12× the peer median.Open Payments
Industry payments received
All-time total
$1,005
Transactions
54
Manufacturers
13
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Janssen Biotech, INC. | 11 | $272.04 | |
| Abbvie INC. | 14 | $192.41 | |
| Takeda Pharmaceuticals U.S.A., INC. | 9 | $161.45 | |
| Regeneron Healthcare Solutions, INC. | 3 | $70.41 | |
| Pfizer INC. | 3 | $51.01 | |
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | 3 | $48.62 | |
| Ironwood Pharmaceuticals, INC | 3 | $45.04 | |
| Genzyme Corporation | 2 | $43.00 | |
| Ardelyx, INC. | 2 | $36.68 | |
| Daiichi Sankyo INC. | 1 | $29.13 | |
| Gilead Sciences, INC. | 1 | $22.46 | |
| Fresenius Kabi USA, LLC | 1 | $18.86 | |
| Intercept Pharmaceuticals, INC. | 1 | $14.38 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
1,246
Patients
496
Total drug cost
$279,796
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Omeprazole | Generic | 239 | 91 | $4,664 |
| Pantoprazole Sodium | Generic | 210 | 82 | $3,066 |
| Famotidine | Generic | 187 | 67 | $3,273 |
| Dicyclomine Hcl | Generic | 120 | 50 | $2,322 |
| Linzess (Linaclotide) | Brand | 94 | 37 | $102,105 |
| Esomeprazole Magnesium | Generic | 52 | 19 | $3,535 |
| Colestipol Hcl | Generic | 51 | 24 | $4,550 |
| Sucralfate | Generic | 49 | 22 | $3,021 |
| Lansoprazole | Generic | 47 | 20 | $1,402 |
| Rabeprazole Sodium | Generic | 38 | 14 | $6,185 |
Frequently asked questions
What is Dr. Erika Grigg's medical specialty?
Dr. Erika Grigg practices Gastroenterology Physician in Kingsport, TN.
Where does Dr. Erika Grigg practice?
Dr. Erika Grigg practices at 135 W Ravine RD, Kingsport, TN 376603847. Office phone: 4232466777.
What is Dr. Erika Grigg's NPI?
Dr. Erika Grigg's National Provider Identifier (NPI) is 1487774410, issued by NPPES.
Does Dr. Erika Grigg accept Medicare assignment?
Yes. Dr. Erika Grigg accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Erika Grigg commonly perform?
Top Medicare-reported procedures in 2023: Chronic care management services for two or more chronic conditions, additional 20 minutes of clinical staff time directed by health care professional, per calendar month (HCPCS 99439); Chronic care management services (HCPCS 99490); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.