Doctor profile · Federal record
Dr. Markham Nightengale, M. D.
Gastroenterology Physician (CMS: Gastroenterology) · Tulsa, OK
- NPI 1144215971
- Accepts Medicare
- MIPS 82.8 / 100 · 2023
- 38 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
4200 E Skelly Dr Ste 700
Tulsa, OK 741353256
(918) 438-7050
fax (918) 221-0835 - Mailing address
-
Po Box 305
Lowell, AR 727450305
Credentials & registration
- NPI registered
- September 2005 — 21 yrs on file
- Profile last updated
- March 19, 2025
- Year of graduation
- 1988 — 38 yrs since
- Specialty taxonomy
- 207RG0100X — NUCC code
- State license (1)
- Oklahoma #18311
- Medicaid
- OK #100131480A
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1144215971. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,259
Distinct HCPCS
10
Medicare allowed
$159,382
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
45385 |
Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 225 | 224 | $235 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 190 | 172 | $118 | |
43239 |
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 189 | 183 | $49 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 121 | 121 | $155 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 118 | 99 | $84 | |
43249 |
Balloon dilation of esophagus, stomach, and/or upper small bowel using a flexible endoscope, less than 3.0 cm | 110 | 103 | $104 | |
45380 |
Biopsy of large bowel using a flexible endoscope | 110 | 110 | $109 | |
G0105 |
Colorectal cancer screening; colonoscopy on individual at high risk | 50 | 49 | $169 | |
99203 |
New patient office or other outpatient visit, 30-44 minutes | 46 | 46 | $103 | |
99202 |
New patient office or other outpatient visit, 15-29 minutes | 38 | 38 | $67 |
In context: peer comparison
Among 13 peers in Tulsa Gastroenterology Physician, average services per provider: 115. This provider delivers 11× the peer median.Open Payments
Industry payments received
All-time total
$199
Transactions
9
Manufacturers
2
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Abbvie INC. | 8 | $165.67 | |
| Lilly USA, LLC | 1 | $33.56 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
993
Patients
427
Total drug cost
$307,555
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Omeprazole | Generic | 488 | 170 | $8,187 |
| Pantoprazole Sodium | Generic | 134 | 43 | $3,102 |
| Clenpiq (Sod Picosulf/Mag Ox/Citric Ac) | Brand | 83 | 81 | $13,387 |
| Plenvu (Peg3350/Sod Sul/Nacl/Kcl/Asb/C) | Brand | 48 | 48 | $6,864 |
| Gavilyte-G (Peg3350/Sod Sulf,Bicarb,Cl/Kcl) | Brand | 44 | 44 | $812 |
| Sutab (Sod Sulf/Pot Chloride/Mag Sulf) | Brand | 25 | 25 | $4,171 |
| Famotidine | Generic | 24 | 0 | $500 |
| Dexlansoprazole Dr (Dexlansoprazole) | Brand | 21 | 0 | $13,218 |
| Ursodiol | Generic | 21 | 0 | $4,799 |
| Humira(Cf) Pen (Adalimumab) | Brand | 20 | 0 | $240,051 |
Hospital affiliations
Frequently asked questions
What is Dr. Markham Nightengale's medical specialty?
Dr. Markham Nightengale practices Gastroenterology Physician in Tulsa, OK.
Where does Dr. Markham Nightengale practice?
Dr. Markham Nightengale practices at 4200 E Skelly Dr Ste 700, Tulsa, OK 741353256. Office phone: 9184387050.
What is Dr. Markham Nightengale's NPI?
Dr. Markham Nightengale's National Provider Identifier (NPI) is 1144215971, issued by NPPES.
Does Dr. Markham Nightengale accept Medicare assignment?
Yes. Dr. Markham Nightengale accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Markham Nightengale commonly perform?
Top Medicare-reported procedures in 2023: Removal of polyps or growths of large bowel using an endoscope with mechanical snare (HCPCS 45385); Established patient office or other outpatient visit (HCPCS 99214); Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (HCPCS 43239). Source: CMS Medicare Physician & Other Practitioners file.