MARIA LONSHTEYN – Internal Medicine Physician, NPI 1720247653
Internal Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
828 GASTROENTEROLOGY in MA
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Provider Addresses for MARIA LONSHTEYN
PO BOX 3160
ANDOVER, MA 018100803
Phone:
Type: Mailing
105, Erdman Way, West Leominster, Leominster, Worcester County, Massachusetts, 01453, United States
LEOMINSTER, MA 014531805
Phone: (978) 537-7552
Type: Location
715 Albany St
Evans 124
Boston, MA 021182526
Phone: (617) 638-6500
Type: Location
105 Erdman Way
Leominster, MA 014531805
Phone: (978) 537-7552
Type: Location
100 CUMMINGS CTR STE 107C
BEVERLY, MA 019156128
Phone: (978) 232-1120
Fax: (978) 232-0110
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: 2011-08-08
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 |
|---|---|---|---|---|
| I20110808000787 | I | Gastroenterology | 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 |
|---|---|---|---|---|
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 106 | 84 | $0 |
| 45385 | Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 77 | 77 | $0 |
| 43239 | Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 68 | 68 | $0 |
| 45380 | Biopsy of large bowel using a flexible endoscope | 53 | 53 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 32 | 32 | $0 |
Insurance plans in this area (ZIP 01810)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| GASTROENTEROLOGY | MA | 45385 | Removal of polyps or growths of large bowel using an endoscope | 14 | 14 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| Infectious Disease | MA | |
| Internal Medicine | MA | |
| A N E S T H E S I O L O G Y | MA | |
| - | MA | |
| Clinical Social Worker | MA | |
| Interventional Cardiology, Cardiovascular Disease (Cardiology) | MA | |
| - | MA | |
| Nurse Practitioner | MA | |
| - | MA | |
| - | MA |
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