DANIEL SAJEWSKI M.D.
NPI 1669485041
Anesthesiology in Roslyn, NY

Q: What is Daniel Sajewski's NPI number?

The NPI number for Daniel Sajewski is 1669485041. It was assigned to this individual provider in the NPPES registry on August 15, 2006.

Q: What is Daniel Sajewski'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 Daniel Sajewski was last updated on June 6, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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 August 15, 2006PECOS EnrolledAccepts Medicare Assignment

100 PORT WASHINGTON BLVD, ROSLYN, NY 11576(516) 627-6624(516) 627-3804 Get Directions Write a Review

NPPES record last updated: June 6, 2013. Verified against the NPPES registry weekly; last sync: October 25, 2026.

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About Daniel Sajewski M.d. NPPES

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

DANIEL SAJEWSKI M.D. (NPI 1669485041) is an individual anesthesiology provider in Roslyn, New York, licensed in New York (191875) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS, is affiliated with St Francis Hospital - The Heart Center, and is a graduate of Rutgers New Jersey Medical School (1989).

NPPES Registry Identity

NPI1669485041

Entity TypeIndividualMale

Primary Taxonomy207L00000X

Provider Legal NameDANIEL SAJEWSKICredential: M.D.

Location Address100 PORT WASHINGTON BLVDRoslyn, NY 11576-1353

Mailing Address100 Port Washington BlvdRoslyn, NY 11576-1347 · (516) 627-6624 · Fax (516) 627-3804

Phone(516) 627-6624

Fax(516) 627-3804

Sole ProprietorNo

Medical School CMSRutgers New Jersey Medical SchoolGraduated 1989

Enumeration DateAugust 15, 2006

Last NPPES UpdateJune 6, 2013

✔ NPI 1669485041 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians

Taxonomy Code207L00000X

License✔ Licensed in NY · 191875

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.

100 PORT WASHINGTON BLVD, Roslyn, NY 11576

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Other Identifiers 3

Medicare UPINF69176NY

Medicare ID-Type Unspecified13H911NY

Medicaid01469401NY

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

Daniel Sajewski M.d. 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 ID7911195649

PECOS Enrollment IDI20101222000729

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

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

Chs Physician Partners, P.C

Same address

Cardiovascular Disease

100 PORT WASHINGTON BLVD, SUITE 105
Roslyn, NY 11576

Reassigned Medicare billing, New York enrollment
Medicare enrollment name: Chs Physician Partners PC
944 clinicians in this Medicare group

NPI 1164585725 (516) 390-9640

New York Cardiovascular Anesthesiologists, P.C.

Same address

Anesthesiology

100 PORT WASHINGTON BLVD
Roslyn, NY 11576

Reassigned Medicare billing, New York enrollment
162 clinicians in this Medicare group

NPI 1801834411 (516) 627-6624

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 18

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 low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

607 services94 patients

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.

68 services65 patients

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.

65 services46 patients

Injection of substance into lower spine canal using imaging guidance 62323

This procedure involves injecting a substance into your lower spine canal, guided by real-time images. It's done to diagnose or treat various conditions. You may feel slight discomfort, but it's generally safe and can provide valuable information for your treatment plan.

41 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.

40 services40 patients

Anesthesia for procedure to assess heart electrical activity 00537

Anesthesia for a procedure to assess heart electrical activity helps ensure comfort and relaxation. It involves administering medication that either numbs a specific area or makes you sleep temporarily. This allows doctors to safely examine your heart's electrical signals without causing discomfort.

33 services32 patients

Anesthesia for x-ray or radiation therapy 01922

Anesthesia for x-ray or radiation therapy involves administering medication to help you relax or sleep during the procedure. It's used to ensure comfort, minimize movement, and reduce anxiety. The type of anesthesia used depends on the procedure and patient's health.

33 services33 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.

31 services30 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.

28 services27 patients

Anesthesia for lens surgery 00142

Anesthesia for lens surgery involves administering medication to numb the eye area, ensuring you feel no pain during the procedure. This can be a local anesthetic (numbing only the eye area) or general (where you're asleep). It helps make the surgery comfortable and stress-free.

26 services26 patients

Anesthesia for total hip replacement 01214

Anesthesia for total hip replacement is a medical service where medication is given to eliminate pain during surgery. Two types are commonly used: general anesthesia, making you unconscious, or spinal anesthesia, numbing the lower body. The choice depends on your health and your doctor's recommendation.

18 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.

18 services16 patients

Anesthesia for insertion or replace of pacing heart defibrillator 00534

Anesthesia for the insertion or replacement of a pacing heart defibrillator is a pain management process. It makes you comfortable during the procedure. It can be local, making you numb in a specific area, or general, where you're asleep and feel no pain.

17 services16 patients

Anesthesia for x-ray on artery of brain, heart, or chest 01926

Anesthesia is given before an x-ray of the brain, heart, or chest artery to ensure comfort and stillness. It helps to eliminate discomfort or pain during the procedure. It's administered by a trained professional, ensuring a safe and smooth procedure.

17 services17 patients

Anesthesia for insertion of permanent heart pacemaker 00530

Anesthesia for a permanent heart pacemaker insertion helps to ensure comfort and calmness during the procedure. It's typically a local anesthetic, numbing the area where the pacemaker is inserted. Sedation may also be given to help you relax. You'll be awake, but may not remember the procedure.

16 services16 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.

16 services16 patients

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.

16 services15 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.

12 services12 patients

Hospital Affiliations CMS Care Compare 2

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

St Francis Hospital - The Heart Center

Acute Care Hospitals · Roslyn, NY

5/5 CMS rating

OwnershipVoluntary non-profit - Church

CMS Certification Number330182

Location100 Port Washington BoulevardRoslyn, NY 11576 · Nassau County

Emergency services

Mercy Medical Center

Acute Care Hospitals · Rockville Centre, NY

3/5 CMS rating

OwnershipVoluntary non-profit - Church

CMS Certification Number330259

Location1000 North Village AvenueRockville Centre, NY 11570 · Nassau 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.

ERIN MARIE MARKEY R.N.,M.S.,APRN-BC

Nurse Practitioner (Acute Care)

100 PORT WASHINGTON BLVD
ROSLYN, NY 11576

Nassau County (516) 562-6351

DR. MENA YACOUB D.O

Internal Medicine (Clinical Cardiac Electrophysiology)

100 PORT WASHINGTON BLVD
ROSLYN, NY 11576

Nassau County (718) 689-0316

JULIA COHEN

Physician Assistant

100 PORT WASHINGTON BLVD
ROSLYN, NY 11576

Nassau County (516) 562-6000

PEDIATRIC CARDIOLOGY OF LI PC

Pediatrics (Pediatric Cardiology)

100 PORT WASHINGTON BLVD, SUITE 108
ROSLYN, NY 11576

Nassau County (516) 365-3340

PATRICK BRENNAN P.A.

Physician Assistant

100 PORT WASHINGTON BLVD
ROSLYN, NY 11576

Nassau County (516) 338-5358

KENNETH ZIELINSKI P.A.

Physician Assistant

100 PORT WASHINGTON BLVD
ROSLYN, NY 11576

Nassau County (516) 338-5358

DR. STEFAN MILTON MUEHLBAUER M.D., PHD

Emergency Medicine

100 PORT WASHINGTON BLVD, DEPT OF EMERGENCY MEDICINE
ROSLYN, NY 11576

Nassau County (165) 626-6055

MRS. MELISSA A MORELLI FNP-C

Nurse Practitioner (Family)

100 PORT WASHINGTON BLVD, ST. FRANCIS HOSPITAL EMERGENCY ROOM
ROSLYN, NY 11576

Nassau County (516) 562-6600

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 Daniel Sajewski's NPI number?

The NPI number for Daniel Sajewski is 1669485041. It was assigned to this individual provider in the NPPES registry on August 15, 2006.

Where is Daniel Sajewski located?

Daniel Sajewski practices at 100 Port Washington Blvd, Roslyn, NY 11576. The listed phone number is (516) 627-6624.

What is Daniel Sajewski's specialty?

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

Is Daniel Sajewski enrolled in Medicare?

Yes. Daniel Sajewski 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 organizations bill Medicare for Daniel Sajewski's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Daniel Sajewski reassigns Medicare benefits to 2 organizations: Chs Physician Partners, P.C (Roslyn, NY) and New York Cardiovascular Anesthesiologists, P.C. (Roslyn, 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 Daniel Sajewski's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Daniel Sajewski affiliated with any hospitals?

According to CMS data, Daniel Sajewski is affiliated with St Francis Hospital - The Heart Center and Mercy Medical Center.

When was this NPI record last updated?

The NPPES record for Daniel Sajewski was last updated on June 6, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.