PROF. BLAIR J MAEROWITZ (PA-C) – Physician Assistant, NPI 1235107970
Physician Assistant
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
5,091 PHYSICIAN ASSISTANT in MA
Provider Addresses for PROF. BLAIR J MAEROWITZ (PA-C)
29B COTTAGE ST
AMHERST, MA 010021206
Phone: (508) 754-3823
Fax: (508) 753-0151
Type: Mailing
29 COTTAGE STREET
B (PIONEER VALLEY DERMATOLOGY)
AMHERST, MA 010021206
Phone: (413) 406-3250
Fax: (413) 549-7402
Type: Location
100, Martin Luther King Jr. Boulevard, Central Business District, Lincoln Square, Central Business District, Worcester, Worcester County, Massachusetts, 01605, United States
WORCESTER, MA 01608
Phone: (508) 754-3823
Fax: (508) 753-0151
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 7 Open Payments records for all available years, with a total value of $268.
Total Amount is formed as General ($268) + Research ($0) + Ownership ($0) = $268.
Last reported payment date: 2024-08-07 • Largest payer in this snapshot: Janssen Biotech, Inc. ($185).
Total Amount
$268
General + Research + Ownership
Payments
7
Total payment records
General Amount
$268
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-08-07
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Janssen Biotech, Inc. | $185 |
| Arcutis Biotherapeutics, Inc. | $40 |
| PFIZER INC. | $15 |
| Sun Pharmaceutical Industries Inc. | $14 |
| LEO Pharma Inc. | $13 |
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: 2007-10-01
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 |
|---|---|---|---|---|
| I20071001000825 | I | Physician Assistant | 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 |
|---|---|---|---|---|
| 17003 | Destruction of precancer skin growth, 2-14 growths | 1,130 | 271 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 1,071 | 895 | $0 |
| 17000 | Destruction of precancer skin growth, 1 growth | 516 | 417 | $0 |
| J3301 | Injection, triamcinolone acetonide, not otherwise specified, 10 mg | 363 | 51 | $0 |
| 99212 | Established patient office or other outpatient visit, 10-19 minutes | 270 | 237 | $0 |
Insurance plans in this area (ZIP 01002)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| DERMATOLOGY | MA | 11101 | Biopsy of each additional growth of skin and/or tissue | 26 | 19 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| D E R M A T O L O G Y | MA | |
| Nurse Practitioner | MA | |
| D E R M A T O L O G Y | MA | |
| D E R M A T O L O G Y | MA | |
| D E R M A T O L O G Y | MA |
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