WILLIAM PAUL SEMANCZUK MD
NPI 1720061146
Anesthesiology in Hackensack, NJ

Q: What is William Semanczuk's NPI number?

The NPI number for William Semanczuk is 1720061146. It was assigned to this individual provider in the NPPES registry on November 21, 2005.

Q: What is William Semanczuk's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for William Semanczuk was last updated on August 25, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.

Active since November 21, 2005PECOS EnrolledAccepts Medicare Assignment

30 PROSPECT AVE, HACKENSACK, NJ 07601(201) 488-0066(201) 488-6769 Get Directions Write a Review

NPPES record last updated: August 25, 2010. Verified against the NPPES registry weekly; last sync: November 01, 2026.

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About William Paul Semanczuk Md NPPES

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

WILLIAM PAUL SEMANCZUK MD (NPI 1720061146) is an individual anesthesiology provider in Hackensack, New Jersey, licensed in New Jersey (25MA07526400) and active in the NPI registry since November 2005. He is enrolled in Medicare PECOS, is affiliated with Nyack Hospital, and is a graduate of Other (1999).

NPPES Registry Identity

NPI1720061146

Entity TypeIndividualMale

Primary Taxonomy207L00000X

Provider Legal NameWILLIAM PAUL SEMANCZUKCredential: MD

Location Address30 PROSPECT AVEHackensack, NJ 07601-1914

Mailing AddressPo Box 18914Newark, NJ 07191-8914 · (201) 488-0066 · Fax (201) 488-6769

Phone(201) 488-0066

Fax(201) 488-6769

Sole ProprietorNo

Medical School CMSOtherGraduated 1999

Enumeration DateNovember 21, 2005

Last NPPES UpdateAugust 25, 2010

✔ NPI 1720061146 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians

Taxonomy Code207L00000X

License✔ Licensed in NJ · 25MA07526400

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.

30 PROSPECT AVE, Hackensack, NJ 07601

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Other Identifiers 1

Medicare UPINH90519

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

William Paul Semanczuk 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 ID3971593260

PECOS Enrollment IDI20170522000962

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 William Semanczuk reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

North Shore - Lij Anesthesiology, PC

26 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 14

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.

Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve) 64447

This procedure involves injecting a numbing agent and/or steroid into a nerve in your thigh. It's done to alleviate pain or inflammation. A needle will be carefully positioned near the nerve, and the medicine will be administered.

31 services31 patients

Anesthesia for other procedure on large bowel using an endoscope 00811

Anesthesia for an endoscopic procedure on the large bowel ensures comfort and relaxation during the procedure. You'll be given medication to make you drowsy or asleep, eliminating any discomfort. The medication can be administered through a vein or inhaled.

27 services27 patients

Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope 00731

This procedure involves the use of an endoscope, a flexible tube with a light and camera, to examine your esophagus, stomach, or upper small bowel. Anesthesia ensures you are comfortable and pain-free during the procedure.

24 services23 patients

Anesthesia for other procedure on upper abdomen 00790

Anesthesia for an upper abdomen procedure involves using medications to help you feel no pain during the operation. It can be general, where you're unconscious, or regional, where just the abdomen area is numbed. It ensures comfort and stillness, aiding a successful procedure.

19 services19 patients

Anesthesia for other procedure on urinary system through urethra 00910

Anesthesia for a procedure on the urinary system through the urethra involves using medicine to numb sensation in the area. This is done to ensure you feel no pain or discomfort during the procedure. The medicine can be given locally, regionally, or generally, depending on the specifics of your procedure.

19 services18 patients

Anesthesia for procedure for total knee joint replacement 01402

Anesthesia for a total knee joint replacement numbs your body to eliminate pain during surgery. This could be general anesthesia where you're unconscious, or regional anesthesia where only the leg is numb. It's administered by a specialist, ensuring safety and comfort.

17 services17 patients

Anesthesia for other procedure on lower abdomen 00840

Anesthesia for a lower abdomen procedure involves medication to eliminate pain during surgery. You might be awake but relaxed and pain-free, or you may be completely unconscious. It's administered to ensure comfort and safety throughout the operation.

16 services16 patients

Anesthesia for other procedure on lower leg, ankle, and foot bones 01480

Anesthesia for procedures on lower leg, ankle, and foot bones involves administering medication to block pain and sensation in these areas. This allows doctors to perform necessary treatments or surgeries without causing discomfort. The type of anesthesia used can vary based on the specific procedure.

15 services15 patients

Injection of anesthetic agent and/or steroid into other nerve or branch 64450

This procedure involves injecting an anesthetic agent or steroid into a specific nerve or its branch. The goal is to relieve pain by reducing inflammation and numbing the area. It is commonly used for chronic pain management. The process is safe and usually quick.

15 services15 patients

Anesthesia for other repair of lower abdomen hernia (1 year or older) 00830

Anesthesia for lower abdomen hernia repair in individuals aged 1 year or older involves administering medication to ensure you don't feel pain during the procedure. It can be either general (you're asleep) or regional (numbs a large area). It's safe and monitored by professionals.

14 services14 patients

Anesthesia for access to central vein 00532

Anesthesia for access to a central vein is a medical procedure where a numbing medication is used to minimize discomfort during the insertion of a long, thin tube into a large vein. This tube can be used to deliver medications, fluids, or to collect blood samples.

13 services13 patients

Anesthesia for other procedure on skin of arms, legs, and front body 00400

Anesthesia for procedures on the skin of your arms, legs, and front body is a service that numbs the area being treated. This ensures you don't feel pain during procedures like biopsies, stitches, or minor surgeries. It's administered through a small injection or a topical cream.

12 services12 patients

Anesthesia for procedure on upper 2/3rd of thigh bone 01230

Anesthesia for a procedure on the upper 2/3rd of the thigh bone involves administering medication to numb the area or make you unconscious, ensuring you don't feel pain during the operation. It's a safe and routine part of surgical procedures.

12 services12 patients

Anesthesia for other procedure or exam of knee joint using an endoscope 01400

Anesthesia for a knee joint procedure or exam using an endoscope involves administering medication to numb the area or put you in a sleep-like state. This ensures you don't feel pain during the procedure. The endoscope, a thin tube with a camera, allows the doctor to view the knee joint internally without making large incisions.

12 services12 patients

Hospital Affiliations CMS Care Compare

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

Nyack Hospital

Acute Care Hospitals · Nyack, NY

2/5 CMS rating

OwnershipVoluntary non-profit - Other

CMS Certification Number330104

Location160 North Midland AvenueNyack, NY 10960 · Rockland County

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. JESUS RAFAEL ALVAREZ-PEREZ M.D.

Obstetrics & Gynecology (Maternal & Fetal Medicine)