DR. DANIEL L HAMILOS (M.D.) – Allergy & Immunology Physician, NPI 1558347047
Allergy & Immunology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
201 ALLERGY/IMMUNOLOGY in MA
Provider Addresses for DR. DANIEL L HAMILOS (M.D.)
Charlestown Post Office (mobile), Pattern Close, St Austell Bay, Charlestown, Cornwall, England, PL25 3FQ, United Kingdom
MASSACHUSETTS GENERAL PHYSICIAN ORGANIZATION
CHARLESTOWN, MA 021299142
Phone: (617) 726-3850
Fax: (617) 724-0239
Type: Mailing
MGH ALLERGY ASSOCIATES CLINIC
55 FRUIT ST - COX 201
BOSTON, MA 021143117
Phone: (617) 726-3850
Fax: (617) 724-0239
Type: Location
250 S CRESCENT DR
MASON CITY, IA 504012926
Phone: (641) 494-5380
Type: Location
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 $87.
Total Amount is formed as General ($87) + Research ($0) + Ownership ($0) = $87.
Last reported payment date: 2024-11-20 • Largest payer in this snapshot: GENZYME CORPORATION ($60).
Total Amount
$87
General + Research + Ownership
Payments
4
Total payment records
General Amount
$87
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-11-20
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| GENZYME CORPORATION | $60 |
| Regeneron Healthcare Solutions, Inc. | $28 |
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: 2023-10-31
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 |
|---|---|---|---|---|
| I20231031000331 | I | Allergy/Immunology | IA | 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 02129)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| P S Y C H I A T R Y | IA | |
| Physician Assistant | TN | |
| - | IA | |
| - | PA | |
| Cardiovascular Disease (Cardiology), Critical Care (Intensivists) | IA | |
| Certified Registered Nurse Anesthetist (Crna) | IA | |
| Physician Assistant | IA | |
| - | IA | |
| Sleep Medicine | IA | |
| Nurse Practitioner | IA |
Reviews
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