Doctor profile · Federal record
Dr. Irena Maier, M.D.
Gastroenterology Physician (CMS: Gastroenterology) · Boston, MA
- NPI 1235161779
- Accepts Medicare
- 32 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
133 Brookline Ave
Boston, MA 022153904
(617) 421-1091
fax (617) 421-2555
Credentials & registration
- NPI registered
- July 2006 — 20 yrs on file
- Profile last updated
- January 7, 2021
- Year of graduation
- 1994 — 32 yrs since
- Specialty taxonomy
- 207RG0100X — NUCC code
- State license (1)
- Massachusetts #219818
- Medicaid
- MA #2091178
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1235161779. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,581
Distinct HCPCS
10
Medicare allowed
$201,713
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
45380 |
Biopsy of large bowel using a flexible endoscope | 229 | 226 | $309 | |
36415 |
Insertion of needle into vein for collection of blood sample | 161 | 85 | $8 | |
45385 |
Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 140 | 138 | $510 | |
80076 |
Liver function blood test panel | 100 | 53 | $8 | |
82565 |
Blood creatinine level | 87 | 48 | $5 | |
85025 |
Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count | 78 | 58 | $8 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 67 | 58 | $140 | |
86140 |
Measurement c-reactive protein for detection of infection or inflammation | 59 | 36 | $5 | |
85610 |
Blood test, clotting time | 58 | 31 | $4 | |
85027 |
Complete blood cell count (red cells, white blood cell, platelets), automated test | 57 | 29 | $6 |
In context: peer comparison
Among 78 peers in this city , average services per provider: 56. This provider delivers 28× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
1,048
Patients
566
Total drug cost
$425,190
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Gavilyte-C (Peg3350/Sod Sulf,bicarb,cl/Kcl) | Brand | 249 | 243 | $4,689 |
| Omeprazole | Generic | 153 | 51 | $4,361 |
| Famotidine | Generic | 148 | 51 | $3,117 |
| Pantoprazole Sodium | Generic | 103 | 41 | $3,920 |
| Peg3350-Sod Sul-Nacl-Kcl-Asb-C (Peg3350/Sod Sul/Nacl/Kcl/Asb/C) | Brand | 76 | 75 | $5,654 |
| Mesalamine | Generic | 53 | 16 | $42,305 |
| Creon (Lipase/Protease/Amylase) | Brand | 48 | 11 | $91,018 |
| Sod Sulf-Potass Sulf-Mag Sulf (Sodium, Potassium,mag Sulfates) | Brand | 34 | 34 | $2,559 |
| Linzess (Linaclotide) | Brand | 33 | 12 | $25,005 |
| Gavilyte-G (Peg3350/Sod Sulf,bicarb,cl/Kcl) | Brand | 32 | 32 | $530 |
Frequently asked questions
What is Dr. Irena Maier's medical specialty?
Dr. Irena Maier practices Gastroenterology Physician in Boston, MA.
Where does Dr. Irena Maier practice?
Dr. Irena Maier practices at 133 Brookline Ave, Boston, MA 022153904. Office phone: 6174211091.
What is Dr. Irena Maier's NPI?
Dr. Irena Maier's National Provider Identifier (NPI) is 1235161779, issued by NPPES.
Does Dr. Irena Maier accept Medicare assignment?
Yes. Dr. Irena Maier accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Irena Maier commonly perform?
Top Medicare-reported procedures in 2023: Biopsy of large bowel using a flexible endoscope (HCPCS 45380); Insertion of needle into vein for collection of blood sample (HCPCS 36415); Removal of polyps or growths of large bowel using an endoscope with mechanical snare (HCPCS 45385). Source: CMS Medicare Physician & Other Practitioners file.