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WILLIAM J SAUER M.D.
NPI 1114248366
Anesthesiology in Portland, ME

Active since June 22, 2010PECOS Enrolled
100/100
CMS Quality Rating
22 BRAMHALL ST, PORTLAND, ME 04102(207) 662-2526 Get Directions Write a Review

NPPES record last updated: May 9, 2016. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: May 9, 2016, Mar 23, 2016 (2 updates tracked since 2016).

About William J Sauer M.d. NPPES

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

WILLIAM J SAUER M.D. (NPI 1114248366) is an individual anesthesiology provider in Portland, Maine, licensed in Maine (MD21066) and active in the NPI registry since June 2010. He is enrolled in Medicare PECOS, is affiliated with Montefiore Medical Center, and is a graduate of University Of Rochester School Of Medicine And Dentistry (2010).

NPPES Registry Identity

NPI1114248366
Entity TypeIndividualMale
Primary Taxonomy207L00000X
Provider Legal NameWILLIAM J SAUERCredential: M.D.
Location Address22 BRAMHALL STPortland, ME 04102-3134
Mailing Address324 Gannett Drive Suite 200South Portland, ME 04106 · (207) 482-7800
Phone(207) 662-2526
Sole ProprietorNo
Medical School CMSUniversity Of Rochester School Of Medicine And DentistryGraduated 2010
Enumeration DateJune 22, 2010
Last NPPES UpdateMay 9, 20162 updates tracked since enumeration
✔ NPI 1114248366 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
Licenses✔ Licensed in ME · MD21066✔ Licensed in CA · A133479
Definition
An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.
22 BRAMHALL ST, Portland, ME 04102
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from NH Healthy Families, Taro Health.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

William J Sauer M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID2860650454
PECOS Enrollment IDI20221202001953
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 William Sauer reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Montefiore Medical Center
266 mi
Anesthesiology
111 E 210TH ST
Bronx, NY 10467
  • Reassigned Medicare billing, New York enrollment
  • 5,251 clinicians in this Medicare group
NPI 1063525152 (914) 378-6021
Yorkville Endoscopy, LLC
273 mi
Ambulatory Surgical
201 E 93RD ST
New York, NY 10128
  • Reassigned Medicare billing, New York enrollment
  • 55 clinicians in this Medicare group
NPI 1174873780 (212) 897-1006

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

Areas of Expertise CMS Part B claims

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.

Critical care, first 30-74 minutes 99291
Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.
76 services33 patients

Hospital Affiliations CMS Care Compare

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

Montefiore Medical Center

Acute Care Hospitals · Bronx, NY
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number330059
Location111 East 210th StreetBronx, NY 10467 · Bronx County
Emergency services Birthing friendly

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.

100/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Promoting Interoperability100
Improvement Activities40

Other Providers at the Same Location NPPES 20

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

ABBY LYNN LABRECQUE PA-C
Physician Assistant (Medical)
22 BRAMHALL ST
PORTLAND, ME 04102
Cumberland County (207) 662-8111
TEGAN SWIFT RD
Dietitian, Registered
22 BRAMHALL ST
PORTLAND, ME 04102
Cumberland County (207) 662-4238
DEREK POULIN DO
Anesthesiology
22 BRAMHALL ST
PORTLAND, ME 04102
Cumberland County (207) 662-2526
MATTHEW SCOTT AUSTIN CRNA
Nurse Anesthetist, Certified Registered
22 BRAMHALL ST
PORTLAND, ME 04102
Cumberland County (207) 662-2526
MADELINE YOUNGBERG MD
Internal Medicine
22 BRAMHALL ST
PORTLAND, ME 04102
Cumberland County (207) 662-0111
ERICA BRASLEY MD
Student in an Organized Health Care Education/Training Program
22 BRAMHALL ST
PORTLAND, ME 04102
Cumberland County (207) 662-0111
REBECCA ROSE LIGHTMAN
Internal Medicine
22 BRAMHALL ST
PORTLAND, ME 04102
Cumberland County (207) 662-7060
DR. LUKE PATRICK KEFFER MD, MBA
Student in an Organized Health Care Education/Training Program
22 BRAMHALL ST
PORTLAND, ME 04102
Cumberland County (207) 662-0111

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 William Sauer's NPI number?

The NPI number for William Sauer is 1114248366. It was assigned to this individual provider in the NPPES registry on June 22, 2010.

Where is William Sauer located?

William Sauer practices at 22 Bramhall St, Portland, ME 04102. The listed phone number is (207) 662-2526.

What is William Sauer's specialty?

The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.

Is William Sauer enrolled in Medicare?

Yes. William Sauer is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for William Sauer's services?

According to the CMS Revalidation Reassignment List (October 2026 release), William Sauer reassigns Medicare benefits to 2 organizations: Montefiore Medical Center (Bronx, NY) and Yorkville Endoscopy, LLC (New York, NY). 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 William Sauer's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does William Sauer accept?

Health plans from Ambetter from NH Healthy Families and Taro Health list William Sauer 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 William Sauer affiliated with any hospitals?

According to CMS data, William Sauer is affiliated with Montefiore Medical Center.

When was this NPI record last updated?

The NPPES record for William Sauer was last updated on May 9, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.