Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Dr. Allen Jay Blaivas, DO

Individual provider Critical Care Medicine (Internal Medicine) Physician · NPI 1104830397

Dr. Allen Jay Blaivas, DO is an Internal Medicine in New York, New York. Graduated from New York College of Osteo Medicine of New York Institute of Technology in 1999, 27 years ago. Practices with Progressive Care Medical Group PLLC, a 44-clinician group, works from 3 locations and accepts Medicare assignment. Licensed in New York.

Years since qualifying
27
Trained at
New York College of Osteo Medicine of New York Institute of Technology
Licensed in
NY
In the registry since
2006
Specialties on file
3
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

1111 Amsterdam Ave
New York, NY 10025-1716
Phone: (212) 523-4000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 385 Tremont Ave # 561/111, East Orange, NJ 07018-1023 — (973) 676-1000
  • 1000 10th Ave, New York, NY 10019-1147 — (212) 523-4000

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 236102 (NY)
Critical Care Medicine (Internal Medicine) Physician Taxonomy 207RC0200X · Licence 236102 (NY)
Pulmonary Disease Physician Taxonomy 207RP1001X · Licence 236102 (NY)

Record details

NPI number1104830397
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedJuly 27, 2006
Last updated in NPPESJanuary 9, 2026
Certification dateJanuary 9, 2026

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyINTERNAL MEDICINE
Also practisesPULMONARY DISEASE, SLEEP MEDICINE
Medical schoolNEW YORK COLLEGE OF OSTEO MEDICINE OF NEW YORK INSTITUTE OF TECHNOLOGY
Graduated 1999 (27 years in practice)
Group practice Progressive Care Medical Group Pllc — 44 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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