DR. CHRISTOPHER G TRETTER MD
NPI 1083648133
Internal Medicine - Hematology & Oncology in South Portland, ME

Active since July 11, 2006PECOS EnrolledAccepts Medicare Assignment
91.41/100
CMS Quality Rating
MAINEHEALTH CANCER CARE, 265 WESTERN AVE SUITE 2, SOUTH PORTLAND, ME 04106(207) 661-0200 Get Directions Write a Review

NPPES record last updated: November 15, 2023. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. Christopher G Tretter Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. CHRISTOPHER G TRETTER MD (NPI 1083648133) is an individual hematology & oncology provider in South Portland, Maine, licensed in Maine (27471) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS, is affiliated with Maine Medical Center, and is a graduate of Mcgill University, Faculty Of Medicine (1994).

NPPES Registry Identity

NPI1083648133
Entity TypeIndividualMale
Primary Taxonomy207RH0003X
Provider Legal NameDR. CHRISTOPHER G TRETTERCredential: MD
Location AddressMAINEHEALTH CANCER CARE, 265 WESTERN AVE SUITE 2South Portland, ME 04106
Mailing AddressMainehealth Cancer Care, 265 Western Ave Suite 2South Portland, ME 04106 · (207) 661-0200
Sole ProprietorNo
Medical School CMSMcgill University, Faculty Of MedicineGraduated 1994
Enumeration DateJuly 11, 2006
Last NPPES UpdateNovember 15, 2023
NPPES CertifiedNovember 13, 2023
NPI 1083648133 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyInternal Medicine · Hematology & OncologyAllopathic & Osteopathic Physicians
Taxonomy Code207RH0003X
Licenses Licensed in ME · 27471 Licensed in MA · 234273
Definition
An internist doctor of osteopathy that specializes in the treatment of the combination of hematology and oncology disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine WAS able to obtain a Certificate of Special Qualifications in the field of Hematology and Oncology. The Certificate is NO longer offered.
MAINEHEALTH CANCER CARE, South Portland, ME 04106

Other Identifiers 2

Medicaid30200880NH
Medicaid110077681AMA

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Dr. Christopher G Tretter Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID9739074048
PECOS Enrollment IDI20231211001681
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 3

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
249 services59 patients
New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205
This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.
38 services38 patients
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
34 services26 patients

Hospital Affiliations CMS Care Compare 5

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Maine Medical Center

Acute Care Hospitals · Portland, ME
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number200009
Location22 Bramhall StPortland, ME 04102 · Cumberland County
Emergency services Birthing friendly

Stephens Memorial Hospital

Critical Access Hospitals · Norway, ME
OwnershipVoluntary non-profit - Private
CMS Certification Number201315
Location181 Main StreetNorway, ME 04268 · Oxford County
Emergency services Birthing friendly

Beth Israel Deaconess Medical Center

Acute Care Hospitals · Boston, MA
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number220086
Location330 Brookline AvenueBoston, MA 02215 · Suffolk County
Emergency services Birthing friendly

Lahey Hospital & Medical Center, Burlington

Acute Care Hospitals · Burlington, MA
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number220171
Location41 & 45 Mall RoadBurlington, MA 01803 · Middlesex County
Emergency services

Memorial Hospital, The

Critical Access Hospitals · North Conway, NH
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number301307
Location3073 White Mountain HighwayNorth Conway, NH 03860 · Carroll County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 04106 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$169.96 typical visit price
range $56.28 – $169.96
Typical copayment $42.49 (range $14.07 – $42.49)
Most-billed visit code 99205
Established Patient
$99.18 typical visit price
range $18.22 – $138.92
Typical copayment $24.79 (range $4.55 – $34.73)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

91.41/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored through an Alternative Payment Model
Quality76.87
Promoting Interoperability100
Improvement Activities40

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Christopher Tretter's NPI number?

The NPI number for Christopher Tretter is 1083648133. It was assigned to this individual provider in the NPPES registry on July 11, 2006.

Where is Christopher Tretter located?

Christopher Tretter practices at Mainehealth Cancer Care 265 Western Ave Suite 2, South Portland, ME 04106. The listed phone number is (207) 661-0200.

What is Christopher Tretter's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.

Is Christopher Tretter enrolled in Medicare?

Yes. Christopher Tretter is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Christopher Tretter accept?

Health plans from Anthem Blue Cross and Blue Shield and Harvard Pilgrim Health Care list Christopher Tretter as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Christopher Tretter affiliated with any hospitals?

According to CMS data, Christopher Tretter is affiliated with Maine Medical Center, Stephens Memorial Hospital, Beth Israel Deaconess Medical Center, Lahey Hospital & Medical Center, Burlington and Memorial Hospital, The.

When was this NPI record last updated?

The NPPES record for Christopher Tretter was last updated on November 15, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.