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MICHAEL LEE KNUDSEN MD
NPI 1093058240
Orthopaedic Surgery in Bronxville, NY

Active since April 05, 2013PECOS EnrolledAccepts Medicare Assignment
1 PONDFIELD RD STE 1, BRONXVILLE, NY 10708(212) 305-5976(212) 305-6193 Get Directions Write a Review

NPPES record last updated: March 21, 2023. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Mar 21, 2023, Jul 7, 2019, Jul 18, 2018 (3 updates tracked since 2018).

About Michael Lee Knudsen Md NPPES

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

MICHAEL LEE KNUDSEN MD (NPI 1093058240) is an individual orthopaedic surgery provider in Bronxville, New York, licensed in New York (292550) and active in the NPI registry since April 2013. He is enrolled in Medicare PECOS, is affiliated with New York-presbyterian Hospital, and is a graduate of University Of Minnesota Medical School (2013).

NPPES Registry Identity

NPI1093058240
Entity TypeIndividualMale
Primary Taxonomy207X00000X
Provider Legal NameMICHAEL LEE KNUDSENCredential: MD
Location Address1 PONDFIELD RD STE 1Bronxville, NY 10708-3706
Mailing Address622 W 168th St Ph 111130New York, NY 10032-3720 · (212) 305-5974 · Fax (212) 305-6193
Phone(212) 305-5976
Fax(212) 305-6193
Sole ProprietorNo
Medical School CMSUniversity Of Minnesota Medical SchoolGraduated 2013
Enumeration DateApril 5, 2013
Last NPPES UpdateMarch 21, 20233 updates tracked since enumeration
NPPES CertifiedMarch 21, 2023
✔ NPI 1093058240 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOrthopaedic SurgeryAllopathic & Osteopathic Physicians
Taxonomy Code207X00000X
License✔ Licensed in NY · 292550
Definition
An orthopaedic surgeon is trained in the preservation, investigation and restoration of the form and function of the extremities, spine and associated structures by medical, surgical and physical means. An orthopaedic surgeon is involved with the care of patients whose musculoskeletal problems include congenital deformities, trauma, infections, tumors, metabolic disturbances of the musculoskeletal system, deformities, injuries and degenerative diseases of the spine, hands, feet, knee, hip, shoulder and elbow in children and adults. An orthopaedic surgeon is also concerned with primary and secondary muscular problems and the effects of central or peripheral nervous system lesions of the musculoskeletal system.
1 PONDFIELD RD STE 1, Bronxville, NY 10708
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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

Michael Lee Knudsen 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 ID3678877495
PECOS Enrollment IDI20180613001911
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 Michael Knudsen reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Trustees Of Columbia University In The City Of New York
8.7 mi
Surgery
622 W 168TH ST
New York, NY 10032
  • Reassigned Medicare billing, New York enrollment
  • Also billed through NPI 1982993184 (New York)
  • 3,922 clinicians in this Medicare group
NPI 1508266347 (646) 317-7111
Columbia Doctors Of New Jersey, P. C.
8.9 mi
Diagnostic Radiology
25 ROCKWOOD PL STE 215
Englewood, NJ 07631
  • Reassigned Medicare billing, New Jersey enrollment
  • 149 clinicians in this Medicare group
NPI 1952224370 (201) 569-0440

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 11

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.

X-ray of shoulder, minimum of 2 views 73030
An X-ray of the shoulder, with a minimum of 2 views, is a non-invasive imaging test. It uses a small amount of radiation to produce images of your shoulder bones. This helps in diagnosing conditions like fractures, arthritis, or other abnormalities. The procedure is quick and painless.
301 services174 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.
253 services172 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
131 services131 patients
Aspiration and/or injection of fluid large joint using ultrasound guidance 20611
This procedure involves using ultrasound technology to accurately locate a large joint, usually the knee or shoulder. A needle is then inserted to either extract fluid (aspiration) or inject medication. The ultrasound helps ensure precision and safety.
83 services62 patients
Injection, methylprednisolone acetate, 40 mg J1030
Methylprednisolone acetate is a medication given through an injection. It's a type of corticosteroid, which reduces inflammation and immune responses. It can be used to treat various conditions like arthritis, allergies, and skin diseases. This dose is 40 mg.
46 services19 patients
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.
38 services33 patients

Hospital Affiliations CMS Care Compare

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

New York-Presbyterian Hospital

Acute Care Hospitals · New York, NY
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number330101
Location525 East 68th StreetNew York, NY 10065 · New York County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 10708 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
$105.06 typical visit price
range $67.40 – $203.53
Typical copayment $26.26 (range $16.85 – $50.88)
Most-billed visit code 99203
Established Patient
$83.44 typical visit price
range $21.66 – $164.45
Typical copayment $20.86 (range $5.41 – $41.11)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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 Michael Knudsen's NPI number?

The NPI number for Michael Knudsen is 1093058240. It was assigned to this individual provider in the NPPES registry on April 5, 2013.

Where is Michael Knudsen located?

Michael Knudsen practices at 1 Pondfield Rd Ste 1, Bronxville, NY 10708. The listed phone number is (212) 305-5976.

What is Michael Knudsen's specialty?

The primary specialty registered for this NPI is Orthopaedic Surgery with taxonomy code 207X00000X.

Is Michael Knudsen enrolled in Medicare?

Yes. Michael Knudsen 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 Michael Knudsen's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Michael Knudsen reassigns Medicare benefits to 2 organizations: Trustees Of Columbia University In The City Of New York (New York, NY) and Columbia Doctors Of New Jersey, P. C. (Englewood, NJ). 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 Michael Knudsen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Michael Knudsen affiliated with any hospitals?

According to CMS data, Michael Knudsen is affiliated with New York-Presbyterian Hospital.

When was this NPI record last updated?

The NPPES record for Michael Knudsen was last updated on March 21, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.