ALI DUFFENS MD
NPI 1568049922
Internal Medicine in New York, NY

Q: What is Ali Duffens's NPI number?

The NPI number for Ali Duffens is 1568049922. It was assigned to this individual provider in the NPPES registry on March 24, 2021.

Q: What is Ali Duffens's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Q: When was this NPI record last updated?

The NPPES record for Ali Duffens was last updated on May 26, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 months 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 March 24, 2021PECOS EnrolledAccepts Medicare Assignment

1275 YORK AVE, NEW YORK, NY 10065(646) 905-0332 Get Directions Write a Review

NPPES record last updated: May 26, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: May 26, 2026, Jun 2, 2025, Mar 24, 2021 (3 updates tracked since 2021).

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About Ali Duffens Md NPPES

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

ALI DUFFENS MD (NPI 1568049922) is an individual internal medicine provider in New York, New York, licensed in New York (336684) and active in the NPI registry since March 2021. She is enrolled in Medicare PECOS, is affiliated with Holy Name Medical Center, and is a graduate of Irvine California College Of Medicine (2021).

NPPES Registry Identity

NPI1568049922

Entity TypeIndividualFemale

Primary Taxonomy207R00000X

Provider Legal NameALI DUFFENSCredential: MD

Location Address1275 YORK AVENew York, NY 10065-6007

Mailing Address633 3rd Ave Fl 4New York, NY 10017-6943 · (212) 639-2000

Phone(646) 905-0332

Sole ProprietorNo

Medical School CMSIrvine California College Of MedicineGraduated 2021

Enumeration DateMarch 24, 2021

Last NPPES UpdateMay 26, 20263 updates tracked since enumeration

NPPES CertifiedMay 26, 2026

✔ NPI 1568049922 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207R00000X

License✔ Licensed in NY · 336684

Definition

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X

1275 YORK AVE, New York, NY 10065

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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Ali Duffens 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 ID8325420284

PECOS Enrollment IDI20250724003158

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.

Hospital Affiliations CMS Care Compare

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

Holy Name Medical Center

Acute Care Hospitals · Teaneck, NJ

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number310008

Location718 Teaneck RdTeaneck, NJ 07666 · Bergen County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 10065 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

$150.24 typical visit price

range $65.69 – $198.19

Typical copayment $37.56 (range $16.42 – $49.54)

Most-billed visit code 99204

Established Patient

$114.88 typical visit price

range $21.20 – $160.66

Typical copayment $28.72 (range $5.30 – $40.16)

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.

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Nurse Practitioner (Adult Health)