Doctor profile · Federal record
Dr. Heidi Ahmed, M.D.
Gastroenterology Physician (CMS: Gastroenterology) · Internal Medicine Physician · North Chelmsford, MA
- NPI 1801276472
- Accepts Medicare
- 11 yrs in practice
- Licensed in 2 states
- Female
- Group practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
20 Research Pl Ste 220
North Chelmsford, MA 018632455
(978) 459-6737
fax (855) 818-1869 - Additional location
-
85 E Concord St Ste 7720
Boston, MA 02118
(617) 638-6525
fax (617) 638-6529 - Mailing address
-
85 E Concord St Ste 7720
Boston, MA 021182335
Credentials & registration
- NPI registered
- June 2015 — 11 yrs on file
- Profile last updated
- March 16, 2022
- Year of graduation
- 2015 — 11 yrs since
- Specialty taxonomy
- 207RG0100X — NUCC code
- State licenses (2)
- Massachusetts #275290 · Iowa #R-10327
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1801276472. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
397
Distinct HCPCS
7
Medicare allowed
$63,321
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 95 | 64 | $139 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 79 | 77 | $180 | |
45385 |
Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 68 | 67 | $259 | |
45380 |
Biopsy of large bowel using a flexible endoscope | 49 | 49 | $75 | |
43239 |
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 46 | 45 | $117 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 31 | 31 | $182 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 29 | 25 | $122 |
In context: peer comparison
Among 3 peers in this city , average services per provider: 48. This provider delivers 8.3× the peer median.Open Payments
Industry payments received
All-time total
$1,241
Transactions
52
Manufacturers
15
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Takeda Pharmaceuticals U.S.A., Inc. | 5 | $151.31 | |
| ABBVIE INC. | 10 | $145.91 | |
| Salix Pharmaceuticals, a division of Bausch Health US, LLC | 11 | $140.25 | |
| Celltrion USA Inc. | 1 | $127.40 | |
| Gilead Sciences, Inc. | 5 | $97.56 | |
| Janssen Scientific Affairs, LLC | 1 | $95.93 | |
| Janssen Biotech, Inc. | 5 | $80.54 | |
| PFIZER INC. | 3 | $52.64 | |
| GENZYME CORPORATION | 2 | $46.06 | |
| Ardelyx, Inc. | 2 | $45.76 | |
| Madrigal Pharmaceuticals | 1 | $42.70 | |
| Lilly USA, LLC | 2 | $42.00 | |
| Regeneron Healthcare Solutions, Inc. | 2 | $36.35 | |
| QOL Medical, LLC | 1 | $32.59 | |
| Celgene Corporation | 1 | $29.75 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
347
Patients
183
Total drug cost
$79,805
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Omeprazole | Generic | 94 | 45 | $1,963 |
| Pantoprazole Sodium | Generic | 64 | 29 | $1,753 |
| Famotidine | Generic | 62 | 26 | $1,326 |
| Sutab (Sod Sulf/Pot Chloride/Mag Sulf) | Brand | 59 | 58 | $10,028 |
| Sod Sulf-Potass Sulf-Mag Sulf (Sodium, Potassium,mag Sulfates) | Brand | 26 | 25 | $1,990 |
| Lactulose | Generic | 25 | 0 | $1,111 |
| Xifaxan (Rifaximin) | Brand | 17 | 0 | $61,633 |
Frequently asked questions
What is Dr. Heidi Ahmed's medical specialty?
Dr. Heidi Ahmed practices Gastroenterology Physician in North Chelmsford, MA.
Where does Dr. Heidi Ahmed practice?
Dr. Heidi Ahmed practices at 20 Research Pl Ste 220, North Chelmsford, MA 018632455. Office phone: 9784596737.
What is Dr. Heidi Ahmed's NPI?
Dr. Heidi Ahmed's National Provider Identifier (NPI) is 1801276472, issued by NPPES.
Does Dr. Heidi Ahmed accept Medicare assignment?
Yes. Dr. Heidi Ahmed accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Heidi Ahmed commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Initial hospital care with moderate level of medical decision making (HCPCS 99223); Removal of polyps or growths of large bowel using an endoscope with mechanical snare (HCPCS 45385). Source: CMS Medicare Physician & Other Practitioners file.