MICHELLE AHN – Internal Medicine Physician, NPI 1124482062
Internal Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
2,420 HOSPITALIST in PA
Provider Addresses for MICHELLE AHN
200 Lothrop St
Suite N-715
Pittsburgh, PA 152132536
Phone: (412) 692-4700
Type: Location
75 Francis St
Boston, MA 021156110
Phone: (617) 732-5500
Type: Location
1153 Centre St
Jamaica Plain, MA 021303446
Phone: (617) 983-7000
Type: Location
55 Fruit St Unit Blake15
Boston, MA 021142621
Phone: (617) 724-3842
Type: Location
Massachusetts General Hospital, 55, Fruit Street, Beacon Hill, Boston, Suffolk County, Massachusetts, 02114, United States
BOSTON, MA 021142621
Phone: (617) 724-3842
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
Loading prescription activity...
Open Payments (CMS)
No Open Payments data available for this provider.
This can happen when there are no reportable CMS Open Payments records.
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: 2019-07-18
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 |
|---|---|---|---|---|
| I20190718001584 | I | Hospitalist | 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 |
|---|---|---|---|---|
| 99233 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 196 | 71 | $0 |
| 99232 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 50 | 24 | $0 |
| 99223 | Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 32 | 32 | $0 |
| 99239 | Hospital discharge day management, more than 30 minutes | 26 | 26 | $0 |
Insurance plans in this area (ZIP 15213)
Loading plans...
Group practice members
| Name | Specialty | State |
|---|---|---|
| G A S T R O E N T E R O L O G Y | MA | |
| Diagnostic Radiology | MA | |
| Nephrology, Internal Medicine | MA | |
| Nurse Practitioner | MA | |
| P A T H O L O G Y | NY | |
| P A T H O L O G Y | MA | |
| P S Y C H I A T R Y | MA | |
| Cardiac Electrophysiology, Internal Medicine, Cardiovascular Disease (Cardiology) | MA | |
| H E M A T O L O G Y/ O N C O L O G Y | MA | |
| N E U R O L O G Y | 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.