Doctor profile · Federal record
Dr. John Shekleton, M.D.
Gastroenterology Physician (CMS: Gastroenterology) · Specialist · Specialist · Tucson, AZ
- NPI 1649277666
- Accepts Medicare
- MIPS 89.3 / 100 · 2023
- 41 yrs in practice
- Licensed in 2 states
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
1871 W Orange Grove RD Ste 101
Tucson, AZ 857041289
(520) 219-8342
fax (520) 219-7117
Credentials & registration
- NPI registered
- July 2005 — 21 yrs on file
- Profile last updated
- November 28, 2022
- Year of graduation
- 1985 — 41 yrs since
- Specialty taxonomy
- 207RG0100X — NUCC code
- State licenses (2)
- Kentucky #29401 · Arizona #29600
- Medicaid
- KY #PENDING
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1649277666. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
766
Distinct HCPCS
10
Medicare allowed
$94,299
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 135 | 109 | $88 | |
43239 |
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 96 | 90 | $97 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 73 | 73 | $163 | |
99231 |
Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | 66 | 46 | $48 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 55 | 55 | $126 | |
45385 |
Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 49 | 49 | $242 | |
99203 |
New patient office or other outpatient visit, 30-44 minutes | 33 | 33 | $110 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 31 | 25 | $122 | |
G0105 |
Colorectal cancer screening; colonoscopy on individual at high risk | 29 | 29 | $177 | |
G0121 |
Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk | 27 | 27 | $180 |
In context: peer comparison
Among 17 peers in Tucson Gastroenterology Physician, average services per provider: 72. This provider delivers 11× the peer median.Open Payments
Industry payments received
All-time total
$586
Transactions
18
Manufacturers
6
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Abbvie INC. | 13 | $252.16 | |
| Madrigal Pharmaceuticals | 1 | $145.61 | |
| Gilead Sciences, INC. | 1 | $121.83 | |
| Phathom Pharmaceuticals, INC. | 1 | $25.62 | |
| Ironwood Pharmaceuticals, INC | 1 | $22.92 | |
| Ipsen Biopharmaceuticals, INC | 1 | $17.83 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
589
Patients
369
Total drug cost
$68,212
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Gavilyte-G (Peg3350/Sod Sulf,Bicarb,Cl/Kcl) | Brand | 204 | 195 | $3,466 |
| Pantoprazole Sodium | Generic | 149 | 71 | $2,954 |
| Omeprazole | Generic | 66 | 28 | $924 |
| Famotidine | Generic | 43 | 29 | $608 |
| Peg-3350 and Electrolytes (Peg3350/Sod Sulf,Bicarb,Cl/Kcl) | Brand | 26 | 25 | $535 |
| Creon (Lipase/Protease/Amylase) | Brand | 21 | 0 | $43,702 |
| Sod Sulf-Potass Sulf-Mag Sulf (Sodium, Potassium,Mag Sulfates) | Brand | 21 | 21 | $1,592 |
| Sucralfate | Generic | 14 | 0 | $1,130 |
| Mesalamine ER (Mesalamine) | Brand | 12 | 0 | $6,806 |
| Dicyclomine Hcl | Generic | 11 | 0 | $184 |
Hospital affiliations
Frequently asked questions
What is Dr. John Shekleton's medical specialty?
Dr. John Shekleton practices Gastroenterology Physician in Tucson, AZ.
Where does Dr. John Shekleton practice?
Dr. John Shekleton practices at 1871 W Orange Grove RD Ste 101, Tucson, AZ 857041289. Office phone: 5202198342.
What is Dr. John Shekleton's NPI?
Dr. John Shekleton's National Provider Identifier (NPI) is 1649277666, issued by NPPES.
Does Dr. John Shekleton accept Medicare assignment?
Yes. Dr. John Shekleton accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. John Shekleton commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (HCPCS 43239); New patient office or other outpatient visit (HCPCS 99204). Source: CMS Medicare Physician & Other Practitioners file.