Doctor profile · Federal record
Dr. Barbara Nath, MD
Gastroenterology Physician (CMS: Gastroenterology) · Internal Medicine Physician · Boston, MA
- NPI 1427048503
- Accepts Medicare
- 49 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
55 Fruit St, Gastroenterology Associates Blk 4
Boston, MA 021142696
(617) 726-3505
fax (617) 724-5996 - Mailing address
-
Po Box 9142, Mass General Physician Organization
Charlestown, MA 021299142
Credentials & registration
- NPI registered
- October 2005 — 21 yrs on file
- Profile last updated
- November 8, 2012
- Year of graduation
- 1977 — 49 yrs since
- Specialty taxonomy
- 207RG0100X — NUCC code
- State license (1)
- Massachusetts #45566
- Medicaid
- MA #0172642
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1427048503. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,198
Distinct HCPCS
10
Medicare allowed
$122,573
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 305 | 226 | $103 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 200 | 166 | $151 | |
G0500 |
Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito | 169 | 163 | $6 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 98 | 80 | $70 | |
45380 |
Biopsy of large bowel using a flexible endoscope | 85 | 84 | $125 | |
99443 |
Telephone medical discussion with physician, 21-30 minutes | 68 | 51 | $103 | |
45385 |
Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 60 | 59 | $266 | |
43239 |
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 51 | 51 | $111 | |
91122 |
Study of rectum sensitivity and function | 29 | 29 | $91 | |
91120 |
Test for tone and sensation of rectum and anus | 28 | 28 | $50 |
In context: peer comparison
Among 78 peers in this city , average services per provider: 56. This provider delivers 21× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
1,427
Patients
516
Total drug cost
$209,461
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Omeprazole | Generic | 306 | 97 | $10,895 |
| Famotidine | Generic | 146 | 58 | $4,959 |
| Gabapentin | Generic | 109 | 36 | $2,714 |
| Atorvastatin Calcium | Generic | 103 | 30 | $2,905 |
| Gavilyte-G (Peg3350/Sod Sulf,bicarb,cl/Kcl) | Brand | 94 | 89 | $1,436 |
| Lisinopril | Generic | 87 | 23 | $866 |
| Linzess (Linaclotide) | Brand | 74 | 25 | $93,496 |
| Hydrochlorothiazide | Generic | 71 | 19 | $476 |
| Nortriptyline Hcl | Generic | 70 | 25 | $3,349 |
| Motegrity (Prucalopride Succinate) | Brand | 69 | 26 | $78,280 |
Hospital affiliations
Frequently asked questions
What is Dr. Barbara Nath's medical specialty?
Dr. Barbara Nath practices Gastroenterology Physician in Boston, MA.
Where does Dr. Barbara Nath practice?
Dr. Barbara Nath practices at 55 Fruit St, Boston, MA 021142696. Office phone: 6177263505.
What is Dr. Barbara Nath's NPI?
Dr. Barbara Nath's National Provider Identifier (NPI) is 1427048503, issued by NPPES.
Does Dr. Barbara Nath accept Medicare assignment?
Yes. Dr. Barbara Nath accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Barbara Nath commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99215); Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito (HCPCS G0500). Source: CMS Medicare Physician & Other Practitioners file.