DR. TINZAR BASEIN (M.D) – Infectious Disease Physician, NPI 1578827838
Infectious Disease Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
7,722 INTERNAL MEDICINE in MA
Provider Addresses for DR. TINZAR BASEIN (M.D)
500 WASHINGTON ST
BOSTON, MA 021111210
Phone: (617) 636-5000
Type: Mailing
960 MASSACHUSETTS AVE STE 2
BOSTON, MA 021182690
Phone: (617) 414-5405
Type: Mailing
11 NEVINS STREET
SUITE 202
BRIGHTON, MA 02135
Phone: (617) 779-6700
Type: Location
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: 2022-08-23
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 |
|---|---|---|---|---|
| I20170925001816 | I | Internal Medicine | MA | TBD |
| I20220823002012 | I | Infectious Disease | TX | 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 |
|---|---|---|---|---|
| 99223 | Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 54 | 53 | $0 |
| 99232 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 52 | 38 | $0 |
| 99233 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 40 | 30 | $0 |
Insurance plans in this area (ZIP 02111)
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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 |
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