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DR. SPENCER GRAYSON DAUER D.O
NPI 1356873103
Anesthesiology in Bay Shore, NY

Active since March 31, 2017PECOS EnrolledAccepts Medicare Assignment
301 E MAIN ST, BAY SHORE, NY 11706(631) 968-3000 Get Directions Write a Review

NPPES record last updated: May 21, 2024. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. Spencer Grayson Dauer D.o NPPES

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

DR. SPENCER GRAYSON DAUER D.O (NPI 1356873103) is an individual anesthesiology provider in Bay Shore, New York, licensed in New York (309013) and active in the NPI registry since March 2017. He is enrolled in Medicare PECOS, is affiliated with Ns/lij Hs Southside Hospital, and is a graduate of Alabama College Of Osteopathic Medicine (2017).

NPPES Registry Identity

NPI1356873103
Entity TypeIndividualMale
Primary Taxonomy207L00000X
Provider Legal NameDR. SPENCER GRAYSON DAUERCredential: D.O
Location Address301 E MAIN STBay Shore, NY 11706-8408
Mailing Address301 E Main StBay Shore, NY 11706-8408 · (631) 968-3000
Phone(631) 968-3000
Sole ProprietorNo
Medical School CMSAlabama College Of Osteopathic MedicineGraduated 2017
Enumeration DateMarch 31, 2017
Last NPPES UpdateMay 21, 2024
NPPES CertifiedMay 21, 2024
✔ NPI 1356873103 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
License✔ Licensed in NY · 309013
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.
301 E MAIN ST, Bay Shore, NY 11706
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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Spencer Grayson Dauer D.o 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 ID2567710502
PECOS Enrollment IDI20220826001978
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 Reassignment

Medicare enrollment records show Spencer Dauer reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

North Shore - Lij Anesthesiology, PC
41 mi
Anesthesiology
480 BEDFORD RD BLDG B
Chappaqua, NY 10514
  • Reassigned Medicare billing, New York enrollment
  • 1,406 clinicians in this Medicare group
NPI 1417401266 (914) 666-8866

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 9

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.

Insertion of artery tube for blood sampling or infusion through skin 36620
This procedure involves placing a small tube into an artery, usually in the wrist or elbow, to collect blood samples or administer medication. It's done under local anesthesia and is a common, safe practice.
49 services48 patients
Ultrasound of heart with probe in esophagus, with report 93312
This procedure, called a transesophageal echocardiogram, uses a small probe passed into your esophagus to capture detailed images of your heart. The report provides information about your heart's structure and function.
46 services44 patients
Ultrasound of heart with color-depicted blood flow, rate and valve function 93325
An ultrasound of the heart, also known as an echocardiogram, uses sound waves to create pictures of your heart. It shows the structure, movement, and blood flow within your heart. This helps assess the heart's health and function, including the valves and rate.
33 services32 patients
Ultrasound of heart blood flow, valves and chambers 93320
An ultrasound of your heart, also known as an echocardiogram, is a test that uses sound waves to create detailed images of your heart. It helps doctors check the health of your heart's chambers, valves, and blood flow.
26 services26 patients
Insertion of non-tunneled central venous tube for infusion (5 years or older) 36556
This procedure involves placing a thin tube into a large vein, usually in the neck or chest, to administer medication or fluids. It's done under local anesthesia to minimize discomfort. It's a standard, safe procedure for individuals aged 5 and above.
24 services24 patients
Ultrasonic guidance for blood vessel access 76937
Ultrasonic guidance for blood vessel access is a medical procedure where sound waves are used to create images of your blood vessels. This helps doctors to accurately locate and access the vessels for treatments or tests, ensuring safety and precision.
22 services22 patients

Hospital Affiliations CMS Care Compare

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

Ns/Lij Hs Southside Hospital

Acute Care Hospitals · Bay Shore, NY
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number330043
Location301 East Main StreetBay Shore, NY 11706 · Suffolk County
Emergency services Birthing friendly

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.

DR. EHAB SABRY HANNA M.D.
Hospitalist
301 E MAIN ST
BAY SHORE, NY 11706
Suffolk County (631) 968-3000
JENNA BANNON MS, RD, CDN
Dietitian, Registered
301 E MAIN ST
BAY SHORE, NY 11706
Suffolk County (631) 968-3593
DR. MEHUL PRAGANI MD
Anesthesiology
301 E MAIN ST
BAY SHORE, NY 11706
Suffolk County (631) 968-3000
ANDREA PASSANNANTE OT, OTR/L, CDIS
Occupational Therapist
301 E MAIN ST
BAY SHORE, NY 11706
Suffolk County (631) 968-3400
DR. STEPHEN CONSTANTINE LANDELL DNP, CRNA, RN
Nurse Anesthetist, Certified Registered
301 E MAIN ST
BAY SHORE, NY 11706
Suffolk County (516) 734-7000
PRIYANSHI CHANDIWALA
Physician Assistant (Surgical)
301 E MAIN ST
BAY SHORE, NY 11706
Suffolk County (631) 968-3000
DAVID VAUGHANS DO
Student in an Organized Health Care Education/Training Program
301 E MAIN ST
BAY SHORE, NY 11706
Suffolk County (631) 968-3000
DR. MATTHEW DAVID SCHWARTZ D.O.
Emergency Medicine
301 E MAIN ST
BAY SHORE, NY 11706
Suffolk County (631) 968-3314

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 Spencer Dauer's NPI number?

The NPI number for Spencer Dauer is 1356873103. It was assigned to this individual provider in the NPPES registry on March 31, 2017.

Where is Spencer Dauer located?

Spencer Dauer practices at 301 E Main St, Bay Shore, NY 11706. The listed phone number is (631) 968-3000.

What is Spencer Dauer's specialty?

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

Is Spencer Dauer enrolled in Medicare?

Yes. Spencer Dauer 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.

Which organization bills Medicare for Spencer Dauer's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Spencer Dauer reassigns Medicare benefits to North Shore - Lij Anesthesiology, PC (Chappaqua, NY). The 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 Spencer Dauer's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Spencer Dauer affiliated with any hospitals?

According to CMS data, Spencer Dauer is affiliated with Ns/Lij Hs Southside Hospital.

When was this NPI record last updated?

The NPPES record for Spencer Dauer was last updated on May 21, 2024. 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.