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ALEXA JACLYN KARKENNY M.D.
NPI 1750700407
Orthopaedic Surgery in Bronx, NY

Active since April 09, 2014PECOS Enrolled
100/100
CMS Quality Rating
1250 WATERS PL, TOWER 1 , 11TH FLOOR, BRONX, NY 10461(718) 920-2060 Get Directions Write a Review

NPPES record last updated: September 22, 2022. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Alexa Jaclyn Karkenny M.d. NPPES

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

ALEXA JACLYN KARKENNY M.D. (NPI 1750700407) is an individual orthopaedic surgery provider in Bronx, New York, licensed in New York (304473) and active in the NPI registry since April 2014. She is enrolled in Medicare PECOS and is a graduate of Drexel University College Of Medicine (2014).

NPPES Registry Identity

NPI1750700407
Entity TypeIndividualFemale
Primary Taxonomy207X00000X
Provider Legal NameALEXA JACLYN KARKENNYCredential: M.D.
Location Address1250 WATERS PL, TOWER 1 , 11TH FLOORBronx, NY 10461
Mailing Address1250 Waters Pl, Tower 1, 11th FloorBronx, NY 10461-1138 · (718) 920-2060
Phone(718) 920-2060
Sole ProprietorNo
Medical School CMSDrexel University College Of MedicineGraduated 2014
Enumeration DateApril 9, 2014
Last NPPES UpdateSeptember 22, 2022
NPPES CertifiedSeptember 19, 2022
✔ NPI 1750700407 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 · 304473
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.
1250 WATERS PL, Bronx, NY 10461
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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 (PECOS)

Alexa Jaclyn Karkenny M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID4981018322
PECOS Enrollment IDI20210319000748
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 Alexa Karkenny reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Montefiore Medical Center
2.9 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

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 10461 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.

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.

DR. LYDIA RABINOWICH M.D.
Psychiatry & Neurology (Neurology)
1250 WATERS PL, SUITE 1203
BRONX, NY 10461
Bronx County (718) 409-4044
MIRA CHANOWITZ DPT
Physical Therapist
1250 WATERS PL
BRONX, NY 10461
Bronx County (718) 409-9444
DR. CECILIA YAQIAN ZHANG PHARMD
Pharmacist
1250 WATERS PL, TOWER 1, SUITE 602
BRONX, NY 10461
Bronx County (718) 239-1492
CENTERLIGHT DIAGNOSTIC AND TREATMENT CENTER, INC.
Clinic/Center
1250 WATERS PL, TOWER 1 SUITE 602
BRONX, NY 10461
Bronx County (347) 640-6050
MS. DENISE A FORBES FNP
Nurse Practitioner (Family)
1250 WATERS PL
BRONX, NY 10461
Bronx County (929) 263-3828
MIRZA BAIG PT
Physical Therapist
1250 WATERS PL
BRONX, NY 10461
Bronx County (718) 430-9313
DR. DAVID M.S. SHEIN M.D.
Orthopaedic Surgery (Orthopaedic Surgery of the Spine)
1250 WATERS PL, SUITE 903
BRONX, NY 10461
Bronx County (718) 450-9955
CECILIA ANN MARTIN
Registered Nurse (Ambulatory Care)
1250 WATERS PL
BRONX, NY 10461
Bronx County (929) 263-3302

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 Alexa Karkenny's NPI number?

The NPI number for Alexa Karkenny is 1750700407. It was assigned to this individual provider in the NPPES registry on April 9, 2014.

Where is Alexa Karkenny located?

Alexa Karkenny practices at 1250 Waters Pl Tower 1 , 11th Floor, Bronx, NY 10461. The listed phone number is (718) 920-2060.

What is Alexa Karkenny's specialty?

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

Is Alexa Karkenny enrolled in Medicare?

Yes. Alexa Karkenny is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Alexa Karkenny's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Alexa Karkenny reassigns Medicare benefits to Montefiore Medical Center (Bronx, 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 Alexa Karkenny's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Alexa Karkenny was last updated on September 22, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.