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DR. JASON ADAM KLEIN M.D.
NPI 1033358676
Pediatrics - Pediatric Endocrinology in Commack, NY

Active since February 04, 2009PECOS EnrolledAccepts Medicare Assignment
500 COMMACK RD, COMMACK, NY 11725(631) 444-5437(631) 638-0157 Get Directions Write a Review

NPPES record last updated: March 25, 2026. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Mar 25, 2026, May 29, 2020 (2 updates tracked since 2020).

About Dr. Jason Adam Klein M.d. NPPES

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

DR. JASON ADAM KLEIN M.D. (NPI 1033358676) is an individual pediatric endocrinology provider in Commack, New York, licensed in New York (255029) and active in the NPI registry since February 2009. He is enrolled in Medicare PECOS and is a graduate of Other (2008).

NPPES Registry Identity

NPI1033358676
Entity TypeIndividualMale
Primary Taxonomy2080P0205X
Provider Legal NameDR. JASON ADAM KLEINCredential: M.D.
Location Address500 COMMACK RDCommack, NY 11725-5020
Mailing Address12 Perri PlDix Hills, NY 11746-6561 · (516) 509-1566 · Fax (888) 312-5155
Phone(631) 444-5437
Fax(631) 638-0157
Sole ProprietorNo
Medical School CMSOtherGraduated 2008
Enumeration DateFebruary 4, 2009
Last NPPES UpdateMarch 25, 20262 updates tracked since enumeration
NPPES CertifiedMarch 25, 2026
✔ NPI 1033358676 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPediatrics · Pediatric EndocrinologyAllopathic & Osteopathic Physicians
Taxonomy Code2080P0205X
License✔ Licensed in NY · 255029
Definition
A pediatrician who provides expert care to infants, children and adolescents who have diseases that result from an abnormality in the endocrine glands (glands which secrete hormones). These diseases include diabetes mellitus, growth failure, unusual size for age, early or late pubertal development, birth defects, the genital region and disorders of the thyroid, the adrenal and pituitary glands.
Also ListedPediatrics · Pediatric NephrologyTaxonomy 2080P0210X · License 255029 (NY)
500 COMMACK RD, Commack, NY 11725
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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

Dr. Jason Adam Klein M.d. 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 ID6305157256
PECOS Enrollment IDI20150618000679
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 11725 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
$154.28 typical visit price
range $67.40 – $203.53
Typical copayment $38.57 (range $16.85 – $50.88)
Most-billed visit code 99204
Established Patient
$117.62 typical visit price
range $21.66 – $164.45
Typical copayment $29.40 (range $5.41 – $41.11)
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 16

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DIANA E FARINO PHARMD
Pharmacist
500 COMMACK RD
COMMACK, NY 11725
Suffolk County (631) 806-6039
ASHISH SAMUEL DANIEL PT, DPT
Physical Therapist
500 COMMACK RD
COMMACK, NY 11725
Suffolk County (631) 828-7220
JACQUELINE LENOCI MD
Ophthalmology (Glaucoma Specialist)
500 COMMACK RD
COMMACK, NY 11725
Suffolk County (631) 444-4090
SAHANA CHOUDHURY NP-C
Nurse Practitioner
500 COMMACK RD
COMMACK, NY 11725
Suffolk County (631) 444-9600
MS. DEBRA ANN HICKEY CPNP
Nurse Practitioner (Pediatrics)
500 COMMACK RD
COMMACK, NY 11725
Suffolk County (631) 638-0150
SUNYA ASHRAF M.D.
Internal Medicine (Pulmonary Disease)
500 COMMACK RD
COMMACK, NY 11725
Suffolk County (631) 834-9599
ALEXANDRA LECUIT OTR/L
Occupational Therapist
500 COMMACK RD
COMMACK, NY 11725
Suffolk County (631) 784-1960
NITA KAUL MD
Internal Medicine
500 COMMACK RD, SUITE 103
COMMACK, NY 11725
Suffolk County (631) 444-0580

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 Jason Klein's NPI number?

The NPI number for Jason Klein is 1033358676. It was assigned to this individual provider in the NPPES registry on February 4, 2009.

Where is Jason Klein located?

Jason Klein practices at 500 Commack Rd, Commack, NY 11725. The listed phone number is (631) 444-5437.

What is Jason Klein's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Endocrinology, with taxonomy code 2080P0205X.

Is Jason Klein enrolled in Medicare?

Yes. Jason Klein 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.

When was this NPI record last updated?

The NPPES record for Jason Klein was last updated on March 25, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.