Doctor profile · Federal record
Dr. Zachary Fricker, MD
Hepatology Physician (CMS: Gastroenterology) · Boston, MA
- NPI 1790049161
- Accepts Medicare
- 14 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
110 Francis St Fl 8
Boston, MA 022155501
(617) 632-1070
Credentials & registration
- NPI registered
- June 2012 — 14 yrs on file
- Profile last updated
- August 13, 2019
- Year of graduation
- 2012 — 14 yrs since
- Specialty taxonomy
- 207RI0008X — NUCC code
- State license (1)
- Massachusetts #262478
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1790049161. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
460
Distinct HCPCS
7
Medicare allowed
$61,685
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 170 | 60 | $126 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 141 | 93 | $150 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 44 | 36 | $103 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 43 | 21 | $153 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 32 | 26 | $104 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 19 | 16 | $184 | |
43239 |
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 11 | 11 | $97 |
In context: peer comparison
Among 5 peers in Boston Hepatology Physician, average services per provider: 49. This provider delivers 9.4× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
606
Patients
132
Total drug cost
$350,300
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Ursodiol | Generic | 89 | 24 | $15,071 |
| Xifaxan (Rifaximin) | Brand | 70 | 16 | $229,771 |
| Tacrolimus | Generic | 58 | 17 | $4,887 |
| Vemlidy (Tenofovir Alafenamide) | Brand | 54 | 0 | $76,096 |
| Furosemide | Generic | 41 | 14 | $274 |
| Pantoprazole Sodium | Generic | 38 | 11 | $417 |
| Lactulose | Generic | 32 | 11 | $2,657 |
| Sulfamethoxazole-Trimethoprim (Sulfamethoxazole/Trimethoprim) | Brand | 32 | 0 | $226 |
| Entecavir | Generic | 31 | 0 | $12,365 |
| Prednisone | Generic | 31 | 0 | $322 |
Frequently asked questions
What is Dr. Zachary Fricker's medical specialty?
Dr. Zachary Fricker practices Hepatology Physician in Boston, MA.
Where does Dr. Zachary Fricker practice?
Dr. Zachary Fricker practices at 110 Francis St Fl 8, Boston, MA 022155501. Office phone: 6176321070.
What is Dr. Zachary Fricker's NPI?
Dr. Zachary Fricker's National Provider Identifier (NPI) is 1790049161, issued by NPPES.
Does Dr. Zachary Fricker accept Medicare assignment?
Yes. Dr. Zachary Fricker accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Zachary Fricker commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Established patient office or other outpatient visit (HCPCS 99215); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.