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DR. ALLEN JAY BLAIVAS DO
NPI 1104830397
Internal Medicine in New York, NY

Active since July 27, 2006PECOS EnrolledAccepts Medicare Assignment
1111 AMSTERDAM AVE, NEW YORK, NY 10025(212) 523-4000 Get Directions Write a Review

NPPES record last updated: January 9, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Jan 9, 2026, Sep 2, 2022 (2 updates tracked since 2022).

About Dr. Allen Jay Blaivas Do NPPES

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

DR. ALLEN JAY BLAIVAS DO (NPI 1104830397) is an individual internal medicine provider in New York, New York, licensed in New York (236102) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS, is affiliated with Hackensack University Medical Center, and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1104830397
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. ALLEN JAY BLAIVASCredential: DO
Location Address1111 AMSTERDAM AVENew York, NY 10025-1716
Mailing Address44 Barry PlPassaic, NJ 07055-3516 · Fax (973) 395-7034
Phone(212) 523-4000
Sole ProprietorNo
Medical School CMSNew York College Of Osteo Medicine Of New York Institute Of TechnologyGraduated 1999
Enumeration DateJuly 27, 2006
Last NPPES UpdateJanuary 9, 20262 updates tracked since enumeration
NPPES CertifiedJanuary 9, 2026
✔ NPI 1104830397 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in NY · 236102
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 ListedInternal Medicine · Critical Care MedicineTaxonomy 207RC0200X · License 236102 (NY)
Also ListedInternal Medicine · Pulmonary DiseaseTaxonomy 207RP1001X · License 236102 (NY)
1111 AMSTERDAM AVE, New York, NY 10025
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Secondary Practice Locations 2

Location 1385 Tremont Ave # 561/111East Orange, NJ 07018-1023 · Phone (973) 676-1000 ext. 1220
Location 21000 10th AveNew York, NY 10019-1147 · Phone (212) 523-4000

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

Dr. Allen Jay Blaivas Do 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 ID9234319666
PECOS Enrollment IDI20110202000348, I20110920000833
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.

Areas of Expertise CMS Part B claims 2

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.

Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222
Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
18 services18 patients
Critical care, first 30-74 minutes 99291
Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.
16 services16 patients

Hospital Affiliations CMS Care Compare

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

Hackensack University Medical Center

Acute Care Hospitals · Hackensack, NJ
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number310001
Location30 Prospect AveHackensack, NJ 07601 · Bergen County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 10025 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.

DR. TAKEHIRO KASAHARA D.M.D.
Dentist (Oral and Maxillofacial Surgery)
1111 AMSTERDAM AVE
NEW YORK, NY 10025
New York County (212) 523-3171
DR. MELVIN KU M.D.
Emergency Medicine
1111 AMSTERDAM AVE
NEW YORK, NY 10025
New York County (212) 523-3981
RAVI KATARI
Emergency Medicine
1111 AMSTERDAM AVE
NEW YORK, NY 10025
New York County (212) 523-4000
YAMINI POTINI MD
Hospitalist
1111 AMSTERDAM AVE
NEW YORK, NY 10025
New York County (212) 523-4000
HANNAH KITTRELL RD, CDN
Dietitian, Registered
1111 AMSTERDAM AVE
NEW YORK, NY 10025
New York County (212) 523-3618
DR. STANLEY CORTELL M.D.
Internal Medicine (Nephrology)
1111 AMSTERDAM AVE, MINTURN ROOM 205
NEW YORK, NY 10025
New York County (212) 523-3530
MR. EZEQUIEL JOSUE RODRIGUEZ RPA-C
Physician Assistant
1111 AMSTERDAM AVE, ORTHO DEPT. CLARK 7
NEW YORK, NY 10025
New York County (212) 523-2650
MR. MICHAEL STEPHEN BALLETTA
Nurse Practitioner (Adult Health)
1111 AMSTERDAM AVE
NEW YORK, NY 10025
New York County (212) 523-5918

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 Allen Blaivas's NPI number?

The NPI number for Allen Blaivas is 1104830397. It was assigned to this individual provider in the NPPES registry on July 27, 2006.

Where is Allen Blaivas located?

Allen Blaivas practices at 1111 Amsterdam Ave, New York, NY 10025. The listed phone number is (212) 523-4000.

What is Allen Blaivas's specialty?

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

Is Allen Blaivas enrolled in Medicare?

Yes. Allen Blaivas 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.

Is Allen Blaivas affiliated with any hospitals?

According to CMS data, Allen Blaivas is affiliated with Hackensack University Medical Center.

When was this NPI record last updated?

The NPPES record for Allen Blaivas was last updated on January 9, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.