Doctor profile · Federal record
Dr. Jennifer Phemister, M.D.
Gastroenterology Physician (CMS: Gastroenterology) · Gastroenterology Physician · Hospitalist Physician · Internal Medicine Physician · Maryville, TN
- NPI 1598008542
- Accepts Medicare
- 13 yrs in practice
- Licensed in 2 states
- Female
- Group practice
- No sanctions
Practice & contact
Operates at 6 locations .
- Primary practice
-
355 Bmh Physicians Office Bldg
Maryville, TN 378045820
(865) 980-5060
fax (865) 980-5066 - Additional location
-
240 Medical Park Blvd
Bristol, TN 376207346
(423) 990-2424 - Additional location
-
325 N. State of Franklin
Johnson City, TN 37614
(423) 439-6283 - Additional location
-
435 2Nd St
Newport, TN 378213703
(423) 625-2200 - Additional location
-
907 E LaMar Alexander Pkwy
Maryville, TN 378045015
(865) 980-4897
fax (865) 977-4796 - Additional location
-
107 Omni Dr Ste A
Seneca, SC 296729448
(864) 695-6697 - Mailing address
-
103 W Broadway Ave
Maryville, TN 378014703
Show 3 more locations
Credentials & registration
- NPI registered
- March 2013 — 13 yrs on file
- Profile last updated
- August 7, 2024
- Year of graduation
- 2013 — 13 yrs since
- Specialty taxonomy
- 207RG0100X — NUCC code
- State licenses (3)
- Tennessee #52396 · South Carolina #40908 · Tennessee #MD0000052396
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1598008542. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
744
Distinct HCPCS
10
Medicare allowed
$94,348
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 226 | 217 | $161 | |
43239 |
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 87 | 80 | $56 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 59 | 52 | $122 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 56 | 47 | $74 | |
45380 |
Biopsy of large bowel using a flexible endoscope | 55 | 54 | $88 | |
45385 |
Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 45 | 45 | $232 | |
99497 |
Advance care planning, first 30 minutes | 40 | 39 | $71 | |
43249 |
Balloon dilation of esophagus, stomach, and/or upper small bowel using a flexible endoscope, less than 3.0 cm | 34 | 32 | $97 | |
43235 |
Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 28 | 27 | $98 | |
45378 |
Diagnostic exam of large bowel using a flexible endoscope | 28 | 28 | $161 |
In context: peer comparison
Among 2 peers in Maryville Gastroenterology Physician, average services per provider: 48. This provider delivers 16× the peer median.Open Payments
Industry payments received
All-time total
$495
Transactions
28
Manufacturers
10
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Abbvie INC. | 9 | $145.57 | |
| Janssen Biotech, INC. | 4 | $76.80 | |
| Takeda Pharmaceuticals U.S.A., INC. | 4 | $71.07 | |
| Phathom Pharmaceuticals, INC. | 3 | $44.79 | |
| Merck Sharp & Dohme LLC | 1 | $33.74 | |
| Ironwood Pharmaceuticals, INC | 2 | $31.79 | |
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | 2 | $30.50 | |
| Qol Medical, LLC | 1 | $25.57 | |
| Pfizer INC. | 1 | $19.93 | |
| Celgene Corporation | 1 | $15.33 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
180
Patients
57
Total drug cost
$302,790
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Pantoprazole Sodium | Generic | 88 | 44 | $956 |
| Famotidine | Generic | 25 | 0 | $309 |
| Sucralfate | Generic | 24 | 13 | $773 |
| Dicyclomine Hcl | Generic | 21 | 0 | $511 |
| Epclusa (Sofosbuvir/Velpatasvir) | Brand | 11 | 0 | $299,851 |
| Omeprazole | Generic | 11 | 0 | $391 |
Hospital affiliations
Frequently asked questions
What is Dr. Jennifer Phemister's medical specialty?
Dr. Jennifer Phemister practices Gastroenterology Physician in Maryville, TN.
Where does Dr. Jennifer Phemister practice?
Dr. Jennifer Phemister practices at 355 Bmh Physicians Office Bldg, Maryville, TN 378045820. Office phone: 8659805060.
What is Dr. Jennifer Phemister's NPI?
Dr. Jennifer Phemister's National Provider Identifier (NPI) is 1598008542, issued by NPPES.
Does Dr. Jennifer Phemister accept Medicare assignment?
Yes. Dr. Jennifer Phemister accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Jennifer Phemister commonly perform?
Top Medicare-reported procedures in 2023: Initial hospital care with moderate level of medical decision making (HCPCS 99223); Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (HCPCS 43239); Initial hospital care with straightforward or low-level medical decision making (HCPCS 99222). Source: CMS Medicare Physician & Other Practitioners file.