Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

MADELEINE KAY MENDELOW MD
NPI 1649975558
Hospitalist in Newburyport, MA

Active since March 31, 2023PECOS Enrolled
25 HIGHLAND AVE, NEWBURYPORT, MA 01950(978) 463-1000 Get Directions Write a Review

NPPES record last updated: October 12, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Oct 12, 2026, Mar 31, 2023 (2 updates tracked since 2023).

About Madeleine Kay Mendelow Md NPPES

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

MADELEINE KAY MENDELOW MD (NPI 1649975558) is an individual hospitalist provider in Newburyport, Massachusetts, licensed in Massachusetts (1028540) and active in the NPI registry since March 2023. She is enrolled in Medicare PECOS, maintains 3 additional practice locations, and is a graduate of Other (2023).

NPPES Registry Identity

NPI1649975558
Entity TypeIndividualFemale
Primary Taxonomy208M00000X
Provider Legal NameMADELEINE KAY MENDELOWCredential: MD
Location Address25 HIGHLAND AVENewburyport, MA 01950-3867
Mailing AddressPo Box 24532New York, NY 10087-4532 · (781) 744-8771
Sole ProprietorNo
Medical School CMSOtherGraduated 2023
Enumeration DateMarch 31, 2023
Last NPPES UpdateOctober 12, 20262 updates tracked since enumeration
NPPES CertifiedOctober 12, 2026
✔ NPI 1649975558 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyHospitalistAllopathic & Osteopathic Physicians
Taxonomy Code208M00000X
License✔ Licensed in MA · 1028540
Definition
Hospitalists are physicians whose primary professional focus is the general medical care of hospitalized patients. Their activities include patient care, teaching, research, and leadership related to Hospital Medicine. The term 'hospitalist' refers to physicians whose practice emphasizes providing care for hospitalized patients.
25 HIGHLAND AVE, Newburyport, MA 01950

Secondary Practice Locations 3

Location 1709 N Justice St Ste BHendersonville, NC 28791-3455 · Phone (828) 696-1255
Location 2123 Hendersonville RdAsheville, NC 28803-2868 · Phone (828) 257-4730 · Fax (828) 232-2942
Location 3148 NC-105 Hwy Extension, suite 102Boone, NC 26807 · Phone (828) 262-4100

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Madeleine Kay Mendelow Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID345609301
PECOS Enrollment IDI20260908003447
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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 01950 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
$134.47 typical visit price
range $58.86 – $177.36
Typical copayment $33.61 (range $14.71 – $44.34)
Most-billed visit code 99204
Established Patient
$103.48 typical visit price
range $19.11 – $144.84
Typical copayment $25.87 (range $4.77 – $36.21)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

Emergency Medicine
25 HIGHLAND AVE
NEWBURYPORT, MA 01950
Anesthesiology
25 HIGHLAND AVE
NEWBURYPORT, MA 01950
Emergency Medicine
25 HIGHLAND AVE, ANNA JAQUES HOSPITAL- EMERGENCY DEPT
NEWBURYPORT, MA 01950
Physician Assistant
25 HIGHLAND AVE
NEWBURYPORT, MA 01950
Nurse Anesthetist, Certified Registered
25 HIGHLAND AVE
NEWBURYPORT, MA 01950
Nurse Practitioner (Psychiatric/Mental Health)
25 HIGHLAND AVE
NEWBURYPORT, MA 01950
Emergency Medicine
25 HIGHLAND AVE
NEWBURYPORT, MA 01950
Hospitalist
25 HIGHLAND AVE
NEWBURYPORT, MA 01950

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 Madeleine Mendelow's NPI number?

The NPI number for Madeleine Mendelow is 1649975558. It was assigned to this individual provider in the NPPES registry on March 31, 2023.

Where is Madeleine Mendelow located?

Madeleine Mendelow practices at 25 Highland Ave, Newburyport, MA 01950. The listed phone number is (978) 463-1000.

What is Madeleine Mendelow's specialty?

The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.

Is Madeleine Mendelow enrolled in Medicare?

Yes. Madeleine Mendelow is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Madeleine Mendelow was last updated on October 12, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 days 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.