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JAMES C WASSERMAN M.D.
NPI 1457352874
Internal Medicine - Nephrology in Portland, ME

Active since August 09, 2005PECOS Enrolled
98.06/100
CMS Quality Rating
1600B CONGRESS ST, PORTLAND, ME 04102(207) 774-5222(207) 761-4433 Get Directions Write a Review

NPPES record last updated: May 16, 2012. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About James C Wasserman M.d. NPPES

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

JAMES C WASSERMAN M.D. (NPI 1457352874) is an individual nephrology provider in Portland, Maine, licensed in Maine (013304) and active in the NPI registry since August 2005. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1457352874
Entity TypeIndividualMale
Primary Taxonomy207RN0300X
Provider Legal NameJAMES C WASSERMANCredential: M.D.
Location Address1600B CONGRESS STPortland, ME 04102-2124
Mailing Address1600b Congress StPortland, ME 04102-2124 · (207) 774-5222 · Fax (207) 761-4433
Phone(207) 774-5222
Fax(207) 761-4433
Sole ProprietorNo
Enumeration DateAugust 9, 2005
Last NPPES UpdateMay 16, 2012
✔ NPI 1457352874 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · NephrologyAllopathic & Osteopathic Physicians
Taxonomy Code207RN0300X
License✔ Licensed in ME · 013304
Definition
An internist who treats disorders of the kidney, high blood pressure, fluid and mineral balance and dialysis of body wastes when the kidneys do not function. This specialist consults with surgeons about kidney transplantation.
1600B CONGRESS ST, Portland, ME 04102
Open in Google Maps ↗

Other Identifiers 4

Medicare UPINF24222ME
Medicare ID-Type UnspecifiedMM4214ME
Medicare PINMM421402ME
Medicaid299940099ME

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

James C Wasserman M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.

Medicare Billing Reassignments

2

Medicare enrollment records show James Wasserman reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Mainehealth
0.9 mi
Orthopaedic Trauma
335 BRIGHTON AVE, SUITE 200
Portland, ME 04102
  • Reassigned Medicare billing, Maine enrollment
  • 46 clinicians in this Medicare group
NPI 1003113127 (207) 662-8600
Maine Medical Partners
0.9 mi
Orthopaedic Trauma
335 BRIGHTON AVE, SUITE 200
Portland, ME 04102
  • Reassigned Medicare billing, Maine enrollment
  • 264 clinicians in this Medicare group
NPI 1124335591 (207) 662-8600

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 04102 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
$128.83 typical visit price
range $56.28 – $169.96
Typical copayment $32.20 (range $14.07 – $42.49)
Most-billed visit code 99204
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.

98.06/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored through an Alternative Payment Model
Quality86.13
Promoting Interoperability100
Improvement Activities40

Referred Medical Equipment & Supplies CMS DME claims 4

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Prednisone, immediate release or delayed release, oral, 1 mg J7512
Treatment-Treatment - Miscellaneous · category RX029N
2 suppliers11 claims1,610 services$0.01 avg. paid by Medicare
Cyclosporine, oral, 25 mg J7515
Treatment-Treatment - Miscellaneous · category RX029N
1 supplier14 claims1,680 services$0.53 avg. paid by Medicare
Pharmacy supply fee for oral anti-cancer, oral anti-emetic or immunosuppressive drug(s); for the first prescription in a 30-day period Q0511
Treatment-Chemotherapy · category RH012N
2 suppliers11 claims11 services$17.35 avg. paid by Medicare
Pharmacy supply fee for oral anti-cancer, oral anti-emetic or immunosuppressive drug(s); for a subsequent prescription in a 30-day period Q0512
Treatment-Chemotherapy · category RH012N
2 suppliers18 claims18 services$10.65 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 13

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MAINE NEPHROLOGY ASSOCIATES P.A.
Internal Medicine (Nephrology)
1600B CONGRESS ST
PORTLAND, ME 04102
Cumberland County (207) 774-5222
BRAD MICHAEL SCHIMELMAN MD
Internal Medicine (Nephrology)
1600B CONGRESS ST
PORTLAND, ME 04102
Cumberland County (207) 774-5222
JOHN PATRICK VELLA M.D.
Internal Medicine (Nephrology)
1600B CONGRESS ST
PORTLAND, ME 04102
Cumberland County (207) 774-5222
PATRICIA L CANTLIN DO
Internal Medicine (Nephrology)
1600B CONGRESS ST
PORTLAND, ME 04102
Cumberland County (207) 774-5222
DR. IOAN COSMA MD
Internal Medicine (Nephrology)
1600B CONGRESS ST
PORTLAND, ME 04102
Cumberland County (207) 774-5222
ELIZABETH WHITNEY PA-C
Physician Assistant
1600B CONGRESS ST
PORTLAND, ME 04102
Cumberland County (207) 774-5222
STEPHEN JOHN CIHOCKI
Nurse Practitioner (Acute Care)
1600B CONGRESS ST
PORTLAND, ME 04102
Cumberland County (207) 774-5222
DR. MICHAEL CHRISTOPHER AKOM M.D.
Internal Medicine (Nephrology)
1600B CONGRESS ST
PORTLAND, ME 04102
Cumberland County (207) 774-5222

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 James Wasserman's NPI number?

The NPI number for James Wasserman is 1457352874. It was assigned to this individual provider in the NPPES registry on August 9, 2005.

Where is James Wasserman located?

James Wasserman practices at 1600B Congress St, Portland, ME 04102. The listed phone number is (207) 774-5222.

What is James Wasserman's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.

Is James Wasserman enrolled in Medicare?

Yes. James Wasserman is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for James Wasserman's services?

According to the CMS Revalidation Reassignment List (October 2026 release), James Wasserman reassigns Medicare benefits to 2 organizations: Mainehealth (Portland, ME) and Maine Medical Partners (Portland, ME). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for James Wasserman's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for James Wasserman was last updated on May 16, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.