DR. MARGUERITE NICOLA YOUNGREN (MD) – Internal Medicine Physician, NPI 1568731636
Internal Medicine Physician
Main info
Doctor Profile
Contacts
Profile Insights
NPPES metrics only — not quality of care.
7,735 INTERNAL MEDICINE in MA
Provider Addresses for DR. MARGUERITE NICOLA YOUNGREN (MD)
55 LAKE AVE N
WORCESTER, MA 016550002
Phone: (508) 334-1000
Type: Mailing
580 COTTAGE GROVE RD STE 107
BLOOMFIELD, CT 060023088
Phone: (860) 243-8709
Type: Mailing
435 Buckland Rd
South Windsor, CT 060743781
Phone: (860) 644-2547
Fax: (860) 644-8687
Type: Location
71 HAYNES ST
MANCHESTER, CT 060404188
Phone: (860) 533-4679
Fax: (860) 645-4151
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 26 Open Payments records for all available years, with a total value of $628.
Total Amount is formed as General ($628) + Research ($0) + Ownership ($0) = $628.
Last reported payment date: 2024-12-12 • Largest payer in this snapshot: Novo Nordisk Inc ($166).
Total Amount
$628
General + Research + Ownership
Payments
26
Total payment records
General Amount
$628
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-12
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Novo Nordisk Inc | $166 |
| AstraZeneca Pharmaceuticals LP | $117 |
| Exact Sciences Corporation | $58 |
| GlaxoSmithKline, LLC. | $58 |
| Lilly USA, LLC | $54 |
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: 2024-08-05
PECOS data refreshed: 2026-06-15
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 |
|---|---|---|---|---|
| I20240805003681 | I | Internal Medicine | CT | 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.
No Medicare fee-for-service utilization data available for this provider in our database.
Insurance plans in this area (ZIP 01655)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Pediatric Medicine | MA | |
| Internal Medicine | CT | |
| Internal Medicine | CT | |
| Family Practice | CT | |
| Nurse Practitioner | CT | |
| Internal Medicine, Addiction Medicine | CT | |
| Internal Medicine | CT | |
| Physician Assistant | CT | |
| Pediatric Medicine, Internal Medicine | NJ | |
| Internal Medicine | CT |
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