MICHAEL G HAMROCK (MD) – Internal Medicine Physician, NPI 1538156880
Internal Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
7,722 INTERNAL MEDICINE in MA
Provider Addresses for MICHAEL G HAMROCK (MD)
SEMC - Outpatient Psychiatry Departmen
2100 Dorchester Ave Suite 101
Dorchester, MA 02124
Phone: (617) 562-5378
Type: Location
SEMC - Addiction Medicine - MAT clinic
736 Cambridge St, 6th FL
Bri, MA 02135
Phone: (617) 562-5378
Type: Location
2020, Centre Street, Highland, West Roxbury, Boston, Suffolk County, Massachusetts, 02132, United States
WEST ROXBURY, MA 021323316
Phone: (617) 327-0700
Fax: (617) 327-6558
Type: Mailing
BMCHS PROVIDER ENROLLMENT
960 MASSACHUSETTS AVE FLR 2
BOSTON, MA 02118
Phone:
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
Loading prescription activity...
Open Payments (CMS)
CMS reports 3 Open Payments records for all available years, with a total value of $76.
Total Amount is formed as General ($76) + Research ($0) + Ownership ($0) = $76.
Last reported payment date: 2024-11-21 • Largest payer in this snapshot: AstraZeneca Pharmaceuticals LP ($47).
Total Amount
$76
General + Research + Ownership
Payments
3
Total payment records
General Amount
$76
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-11-21
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| AstraZeneca Pharmaceuticals LP | $47 |
| Lilly USA, LLC | $30 |
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2009-04-28
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20090428000365 | I | Internal Medicine | MA | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 131 | 15 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 77 | 15 | $0 |
Insurance plans in this area (ZIP 02124)
Loading plans...
Group practice members
| Name | Specialty | State |
|---|---|---|
| Emergency Medicine | MA | |
| Diagnostic Radiology | MA | |
| Anesthesiology, Pain Management | MA | |
| Physician Assistant | MA | |
| Internal Medicine, Infectious Disease | MA | |
| Physician Assistant | MA | |
| Hospitalist, Internal Medicine | MA | |
| Pulmonary Disease, Infectious Disease | MA | |
| Pulmonary Disease, Critical Care (Intensivists) | MA | |
| Physician Assistant | MA |
Reviews
All reviews are moderated before publication. Reviews reflect users' opinions; we do not verify the accuracy of individual reviews.
No reviews yet. Be the first to share your experience — your opinion helps families compare providers.