DR. IDA G LEONG M.D.
NPI 1447243365
General Practice in Santa Cruz, CA

Q: What is Ida Leong's NPI number?

The NPI number for Ida Leong is 1447243365. It was assigned to this individual provider in the NPPES registry on August 25, 2005.

Q: What is Ida Leong's specialty?

The primary specialty registered for this NPI is General Practice with taxonomy code 208D00000X.

Q: When was this NPI record last updated?

The NPPES record for Ida Leong was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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 August 25, 2005PECOS EnrolledAccepts Medicare Assignment

320 RIVER ST, SANTA CRUZ, CA 95060(831) 272-4324(831) 457-2328 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jul 13, 2026, Apr 5, 2021 (2 updates tracked since 2021).

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About Dr. Ida G Leong M.d. NPPES

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

DR. IDA G LEONG M.D. (NPI 1447243365) is an individual general practice provider in Santa Cruz, California, licensed in California (C38441) and active in the NPI registry since August 2005. She is enrolled in Medicare PECOS and is a graduate of Tufts University School Of Medicine (1978).

NPPES Registry Identity

NPI1447243365

Entity TypeIndividualFemale

Primary Taxonomy208D00000X

Provider Legal NameDR. IDA G LEONGCredential: M.D.

Location Address320 RIVER STSanta Cruz, CA 95060-2723

Mailing Address603 Arroyo SecoSanta Cruz, CA 95060-3147 · (831) 462-4595 · Fax (831) 457-2328

Phone(831) 272-4324

Fax(831) 457-2328

Sole ProprietorNo

Medical School CMSTufts University School Of MedicineGraduated 1978

Enumeration DateAugust 25, 2005

Last NPPES UpdateJuly 13, 20262 updates tracked since enumeration

NPPES CertifiedApril 5, 2021

✔ NPI 1447243365 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyGeneral PracticeAllopathic & Osteopathic Physicians

Taxonomy Code208D00000X

License✔ Licensed in CA · C38441

Definition

A physician who specializes in the general practice of diagnosing, treating, and managing patients with a variety of illnesses and conditions. Source: National Uniform Claim Committee

320 RIVER ST, Santa Cruz, CA 95060

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Other Identifiers 1

OtherC38441CA · Medical License No.

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Ida G Leong 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 ID2466514427

PECOS Enrollment IDI20081229000518

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 Ida Leong reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Permanente Medical Group Inc

25 mi

Internal Medicine

710 LAWRENCE EXPRESSWAY
Santa Clara, CA 95051

Reassigned Medicare billing, California enrollment
20,078 clinicians in this Medicare group

NPI 1073606299 (408) 851-1000

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.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

185 services36 patients

Telephone medical discussion with physician, 11-20 minutes 99442

This is a service where you have a phone conversation with your doctor for 11-20 minutes. It's used for discussing health concerns, reviewing test results, or managing ongoing conditions. It's a convenient way to receive medical advice without an in-person visit.

44 services26 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

23 services16 patients

Referred Medical Equipment & Supplies CMS DME claims 2

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390

DME-Oxygen and Supplies · category DC002N

1 supplier12 claims12 services$69.20 avg. paid by Medicare

Portable oxygen concentrator, rental E1392

DME-Oxygen and Supplies · category DC002N

1 supplier12 claims12 services$34.16 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 9

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

JILLIAN KERRY CHESLEY MFT

Marriage & Family Therapist