DR. CHRISTOPHER G TRETTER (MD) – Hematology & Oncology Physician, NPI 1083648133
Hematology & Oncology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
916 INTERNAL MEDICINE in ME
Provider Addresses for DR. CHRISTOPHER G TRETTER (MD)
MAINEHEALTH CANCER CARE
265 WESTERN AVE SUITE 2
SOUTH PORTLAND, ME 04106
Phone: (207) 661-0200
Type: Mailing
Lahey Hospital & Medical Center, 41, Burlington Mall Road, Burlington, Middlesex County, Massachusetts, 01805, United States
41 MALL ROAD
BURLINGTON, MA 018050001
Phone: (781) 744-8000
Fax: (781) 744-5245
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 1 Open Payments records for all available years, with a total value of $26.
Total Amount is formed as General ($26) + Research ($0) + Ownership ($0) = $26.
Last reported payment date: 2023-02-22 • Largest payer in this snapshot: PFIZER INC. ($26).
Total Amount
$26
General + Research + Ownership
Payments
1
Total payment records
General Amount
$26
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2023-02-22
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| PFIZER INC. | $26 |
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: 2023-12-11
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking 2 Medicare enrollment records; no due dates published yet.
Enrollment records
2
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 |
|---|---|---|---|---|
| I20071205000128 | I | Hematology/Oncology | MA | TBD |
| I20231211001681 | I | Medical Oncology | ME | 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 | 691 | 239 | $0 |
| 99215 | Established patient office or other outpatient visit, 40-54 minutes | 177 | 91 | $0 |
| 99232 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 57 | 21 | $0 |
| 99205 | New patient office or other outpatient visit, 60-74 minutes | 43 | 43 | $0 |
| 99443 | Telephone medical discussion with physician, 21-30 minutes | 28 | 21 | $0 |
Insurance plans in this area (ZIP 04106)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Physician Assistant | PA | |
| - | ME | |
| - | ME | |
| - | ME | |
| - | ME | |
| Family Practice, Hospice/Palliative Care | ME | |
| Pediatric Medicine, Endocrinology | MA | |
| - | ME | |
| Family Practice | ME | |
| Nurse Practitioner | ME |
Reviews
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