Doctor profile · Federal record
Dr. Alan Mermelstein, MD
Gastroenterology Physician (CMS: Gastroenterology) · Phila, PA
- NPI 1073520458
- Accepts Medicare
- MIPS 27.3 / 100 · 2023
- 43 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
7439 Frankford Ave
Phila, PA 19136
(215) 333-1377
fax (215) 333-1399
Credentials & registration
- NPI registered
- August 2006 — 20 yrs on file
- Profile last updated
- September 14, 2010
- Year of graduation
- 1983 — 43 yrs since
- Specialty taxonomy
- 207RG0100X — NUCC code
- State license (1)
- Pennsylvania #MD033183E
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1073520458. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,741
Distinct HCPCS
8
Medicare allowed
$160,820
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 709 | 153 | $83 | |
99308 |
Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 15 minutes | 554 | 119 | $78 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 165 | 96 | $91 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 161 | 123 | $136 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 64 | 55 | $132 | |
43239 |
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 47 | 46 | $129 | |
45380 |
Biopsy of large bowel using a flexible endoscope | 30 | 30 | $146 | |
45385 |
Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 11 | 11 | $266 |
In context: peer comparison
Among 12 peers in Phila Gastroenterology Physician, average services per provider: 57. This provider delivers 31× the peer median.Open Payments
Industry payments received
All-time total
$1,425
Transactions
71
Manufacturers
15
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | 17 | $297.70 | |
| Abbvie INC. | 12 | $237.03 | |
| Takeda Pharmaceuticals U.S.A., INC. | 8 | $191.85 | |
| Gilead Sciences, INC. | 10 | $147.22 | |
| Genzyme Corporation | 5 | $87.66 | |
| Ardelyx, INC. | 4 | $85.52 | |
| Janssen Biotech, INC. | 3 | $80.59 | |
| Shield Therapeutics INC | 1 | $63.65 | |
| Ipsen Biopharmaceuticals, INC | 2 | $56.52 | |
| Pfizer INC. | 3 | $54.00 | |
| Lilly USA, LLC | 2 | $44.41 | |
| Phathom Pharmaceuticals, INC. | 1 | $21.58 | |
| Celltrion USA INC. | 1 | $20.22 | |
| Ironwood Pharmaceuticals, INC | 1 | $19.40 | |
| Evoke Pharma, INC. | 1 | $17.74 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
333
Patients
118
Total drug cost
$62,623
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Famotidine | Generic | 73 | 21 | $998 |
| Pantoprazole Sodium | Generic | 65 | 28 | $1,254 |
| Omeprazole | Generic | 46 | 15 | $642 |
| Linzess (Linaclotide) | Brand | 32 | 11 | $41,596 |
| Sucralfate | Generic | 30 | 13 | $2,416 |
| Sertraline Hcl | Generic | 26 | 0 | $152 |
| Mesalamine | Generic | 17 | 0 | $14,253 |
| Gavilyte-G (Peg3350/Sod Sulf,Bicarb,Cl/Kcl) | Brand | 16 | 15 | $300 |
| Gavilyte-C (Peg3350/Sod Sulf,Bicarb,Cl/Kcl) | Brand | 15 | 15 | $286 |
| Esomeprazole Magnesium | Generic | 13 | 0 | $724 |
Frequently asked questions
What is Dr. Alan Mermelstein's medical specialty?
Dr. Alan Mermelstein practices Gastroenterology Physician in Phila, PA.
Where does Dr. Alan Mermelstein practice?
Dr. Alan Mermelstein practices at 7439 Frankford Ave, Phila, PA 19136. Office phone: 2153331377.
What is Dr. Alan Mermelstein's NPI?
Dr. Alan Mermelstein's National Provider Identifier (NPI) is 1073520458, issued by NPPES.
Does Dr. Alan Mermelstein accept Medicare assignment?
Yes. Dr. Alan Mermelstein accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Alan Mermelstein commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Subsequent nursing facility care with straightforward level of medical decision making (HCPCS 99308); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.