DR. JONATHAN LEONG MD
NPI 1205412962
Internal Medicine in Bronx, NY

Q: What is Jonathan Leong's NPI number?

The NPI number for Jonathan Leong is 1205412962. It was assigned to this individual provider in the NPPES registry on March 23, 2021.

Q: What is Jonathan Leong'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 Jonathan Leong was last updated on August 19, 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 23, 2021PECOS Enrolled

111 E 210TH ST, BRONX, NY 10467(718) 920-4321 Get Directions Write a Review

NPPES record last updated: August 19, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Aug 19, 2026, Mar 23, 2021 (2 updates tracked since 2021).

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About Dr. Jonathan Leong Md NPPES

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

DR. JONATHAN LEONG MD (NPI 1205412962) is an individual internal medicine provider in Bronx, New York, licensed in New York (329907) and active in the NPI registry since March 2021. He is enrolled in Medicare PECOS, is affiliated with Montefiore Medical Center, and is a graduate of State University Of New York Downstate Medical Center (2021).

NPPES Registry Identity

NPI1205412962

Entity TypeIndividualMale

Primary Taxonomy207R00000X

Provider Legal NameDR. JONATHAN LEONGCredential: MD

Location Address111 E 210TH STBronx, NY 10467-2401

Mailing Address111 E 210th StBronx, NY 10467-2401 · (718) 920-4321

Phone(718) 920-4321

Sole ProprietorNo

Medical School CMSState University Of New York Downstate Medical CenterGraduated 2021

Enumeration DateMarch 23, 2021

Last NPPES UpdateAugust 19, 20262 updates tracked since enumeration

NPPES CertifiedAugust 19, 2026

✔ NPI 1205412962 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207R00000X

License✔ Licensed in NY · 329907

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.

111 E 210TH ST, Bronx, NY 10467

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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Jonathan Leong Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID7012314792

PECOS Enrollment IDI20240812001609

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.

Medicare Billing Reassignment

Medicare enrollment records show Jonathan Leong reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Montefiore Medical Center

Same address

Anesthesiology

111 E 210TH ST
Bronx, NY 10467

Reassigned Medicare billing, New York enrollment
5,251 clinicians in this Medicare group

NPI 1063525152 (914) 378-6021

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 3

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.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232

Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.

44 services21 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233

Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.

40 services15 patients

Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223

Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.

19 services19 patients

Hospital Affiliations CMS Care Compare

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

Montefiore Medical Center

Acute Care Hospitals · Bronx, NY

2/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number330059

Location111 East 210th StreetBronx, NY 10467 · Bronx County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 10467 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 20

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

DR. AMANDA MCNEAR JACOBS M.D.

Pediatrics (Adolescent Medicine)

111 E 210TH ST, DEPARTMENT OF PEDIATRICS
BRONX, NY 10467

Bronx County (718) 920-2306

HEATHER ROOT MD

Internal Medicine (Infectious Disease)