HOSSEIN SADRZADEH (M.D.) – Hematology (Internal Medicine) Physician, NPI 1508278169
Hematology (Internal Medicine) Physician
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Profile Insights
NPPES metrics only — not quality of care.
606 HEMATOLOGY/ONCOLOGY in MA
Provider Addresses for HOSSEIN SADRZADEH (M.D.)
UMass Memorial Medical Group, Inc
55 Lake Avenue North
Worcester, MA 01655
Phone: (508) 334-8515
Fax: (508) 334-6490
Type: Location
830 Harrison Avenue
Moakley, 3rd Floor
Boston, MA 02118
Phone: (617) 638-6428
Fax: (617) 638-5756
Type: Location
41 MALL RD
BURLINGTON, MA 018050001
Phone: (781) 744-8000
Type: Location
830 HARRISON AVENUE
MOAKLEY, 3RD FLOOR
BOSTON, MA 02118
Phone: (617) 638-6428
Fax: (617) 638-5756
Type: Location
720 HARRISON AVE
BOSTON, MA 021182371
Phone:
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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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: 2025-11-04
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking 2 Medicare enrollment records; no due dates published yet.
Enrollment records
2
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 |
|---|---|---|---|---|
| I20190326000931 | I | Internal Medicine | MA | TBD |
| I20251104003838 | I | Hematology/Oncology | MT | 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 |
|---|---|---|---|---|
| 99232 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 336 | 139 | $0 |
| 99233 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 161 | 45 | $0 |
| 99239 | Hospital discharge day management, more than 30 minutes | 50 | 50 | $0 |
| 99222 | Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 16 | 16 | $0 |
Insurance plans in this area (ZIP 01655)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Nurse Practitioner | MA | |
| - | MA | |
| G A S T R O E N T E R O L O G Y | NY | |
| Physician Assistant | MA | |
| A N E S T H E S I O L O G Y | MA |
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