Doctor profile · Federal record
Dr. Mara Posner, D.O
Gastroenterology Physician (CMS: Gastroenterology) · Las Vegas, NV
- NPI 1477765634
- Accepts Medicare
- 25 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
4750 W Oakey Blvd Ste 3B
Las Vegas, NV 891021535
(702) 877-5199 - Mailing address
-
Po Box 35380
Las Vegas, NV 891335380
Credentials & registration
- NPI registered
- May 2007 — 19 yrs on file
- Profile last updated
- June 4, 2020
- Year of graduation
- 2001 — 25 yrs since
- Specialty taxonomy
- 207RG0100X — NUCC code
- State license (1)
- Nevada #DO 1494
- Medicaid
- NV #1477765634
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1477765634. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
131
Distinct HCPCS
3
Medicare allowed
$18,621
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 83 | 50 | $123 | |
45385 |
Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 26 | 26 | $251 | |
43239 |
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 22 | 22 | $85 |
In context: peer comparison
Among 19 peers in Las Vegas Gastroenterology Physician, average services per provider: 90. This provider delivers 1.5× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
1,565
Patients
573
Total drug cost
$111,859
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Omeprazole | Generic | 445 | 155 | $8,071 |
| Dicyclomine Hcl | Generic | 312 | 96 | $7,371 |
| Famotidine | Generic | 179 | 54 | $4,612 |
| Pantoprazole Sodium | Generic | 159 | 57 | $2,469 |
| Gavilyte-G (Peg3350/Sod Sulf,Bicarb,Cl/Kcl) | Brand | 79 | 75 | $949 |
| Sucralfate | Generic | 52 | 17 | $3,865 |
| Sod Sulf-Potass Sulf-Mag Sulf (Sodium, Potassium,Mag Sulfates) | Brand | 48 | 47 | $3,532 |
| Mesalamine | Generic | 46 | 0 | $30,412 |
| Ondansetron Odt (Ondansetron) | Brand | 42 | 18 | $1,766 |
| Colestipol Hcl | Generic | 41 | 11 | $3,380 |
Frequently asked questions
What is Dr. Mara Posner's medical specialty?
Dr. Mara Posner practices Gastroenterology Physician in Las Vegas, NV.
Where does Dr. Mara Posner practice?
Dr. Mara Posner practices at 4750 W Oakey Blvd Ste 3B, Las Vegas, NV 891021535. Office phone: 7028775199.
What is Dr. Mara Posner's NPI?
Dr. Mara Posner's National Provider Identifier (NPI) is 1477765634, issued by NPPES.
Does Dr. Mara Posner accept Medicare assignment?
Yes. Dr. Mara Posner accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mara Posner commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Removal of polyps or growths of large bowel using an endoscope with mechanical snare (HCPCS 45385); Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (HCPCS 43239). Source: CMS Medicare Physician & Other Practitioners file.