HEATHER DEMASSA (APRN, RN, IBCLC) – Family Nurse Practitioner, NPI 1609388560
Family Nurse Practitioner
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
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Provider Addresses for HEATHER DEMASSA (APRN, RN, IBCLC)
1500, Post Road, Noroton, Darien, Fairfield County, Connecticut, 06820, United States
DARIEN, CT 068205935
Phone: (203) 276-4282
Fax: (203) 276-8585
Type: Location
27 Hospital Ave Suite 303
Danbury, CT 068102110
Phone: (203) 798-0500
Fax: (203) 798-0081
Type: Location
36 GROVE STREET
1ST FL
DARIEN, CT 068405329
Phone: (203) 276-4282
Fax: (203) 276-8585
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 4 Open Payments records for all available years, with a total value of $69.
Total Amount is formed as General ($69) + Research ($0) + Ownership ($0) = $69.
Last reported payment date: 2024-08-26 • Largest payer in this snapshot: Sage Therapeutics, Inc. ($39).
Total Amount
$69
General + Research + Ownership
Payments
4
Total payment records
General Amount
$69
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-08-26
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Sage Therapeutics, Inc. | $39 |
| Astellas Pharma US Inc | $31 |
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: 2020-03-06
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 |
|---|---|---|---|---|
| I20200306001299 | I | Nurse Practitioner | 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.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 11 | 11 | $0 |
Insurance plans in this area (ZIP 06820)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| O B S T E T R I C S/ G Y N E C O L O G Y | CT | |
| Physician Assistant | CT | |
| Family Practice | CT | |
| Physician Assistant | CT | |
| P S Y C H I A T R Y | CT | |
| O B S T E T R I C S/ G Y N E C O L O G Y | CT | |
| O B S T E T R I C S/ G Y N E C O L O G Y | CT | |
| Physician Assistant | CT | |
| Internal Medicine | NY | |
| Nurse Practitioner | CT |
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