LEON KAO MD
NPI 1265639728
Allergy & Immunology - Allergy in Germantown, MD

Active since June 28, 2007PECOS EnrolledAccepts Medicare Assignment
19851 OBSERVATION DR STE 375, GERMANTOWN, MD 20876(301) 972-3709(301) 515-3612 Get Directions Write a Review

NPPES record last updated: September 5, 2022. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Sep 5, 2022, Feb 27, 2020, Jul 11, 2016 (3 updates tracked since 2016).

About Leon Kao Md NPPES

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

LEON KAO MD (NPI 1265639728) is an individual allergy provider in Germantown, Maryland, licensed in Maryland (D0074337) and active in the NPI registry since June 2007. He is enrolled in Medicare PECOS and is a graduate of Other (2001).

NPPES Registry Identity

NPI1265639728
Entity TypeIndividualMale
Primary Taxonomy207KA0200X
Provider Legal NameLEON KAOCredential: MD
Location Address19851 OBSERVATION DR STE 375Germantown, MD 20876-4151
Mailing Address19851 Observation Dr Ste 375Germantown, MD 20876-4151 · (301) 972-3709
Fax(301) 515-3612
Sole ProprietorYes
Medical School CMSOtherGraduated 2001
Enumeration DateJune 28, 2007
Last NPPES UpdateSeptember 5, 20223 updates tracked since enumeration
NPPES CertifiedSeptember 5, 2022
NPI 1265639728 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyAllergy & Immunology · AllergyAllopathic & Osteopathic Physicians
Taxonomy Code207KA0200X
License Licensed in MD · D0074337
Definition
A physician who specializes in the diagnosis, treatment, and management of allergies. Source: National Uniform Claim Committee
19851 OBSERVATION DR STE 375, Germantown, MD 20876

Other Identifiers 11

Other97730501MD · Bcbs Of Maryland
Other1049243VA · Southern Health/coventry
Other5753777MD · Cigna
Other8739985MD · Aetna Hmo
Other227674YDBHMD · Medicare
OtherP00735855VA · Railroad Medicare
Other3090008MD · Mdipa/optimum Choice
Other9117376MD · Aetna Ppo
OtherC149-0015MD · Carefirst Blue Choice
Medicaid1265639728VA
Other302011VA · Anthem

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

Leon Kao Md 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 ID6709939358
PECOS Enrollment IDI20130524000283
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 7

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.

Test for allergy using allergenic extract 95004
An allergy test with allergenic extract is a diagnostic method to identify substances causing allergic reactions. Small amounts of common allergens are introduced to your body, usually through skin pricks or blood tests. Your body's response helps determine your allergies.
1,020 services26 patients
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.
108 services68 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
49 services49 patients
Test to measure the level of nitric oxide gas 95012
A test to measure the level of nitric oxide gas helps assess inflammation in the lungs, often linked with asthma. You'll breathe into a device, and it'll provide a reading of nitric oxide levels. This helps monitor and manage respiratory conditions.
44 services33 patients
Test to measure expiratory airflow and volume 94010
This test, known as spirometry, assesses how well your lungs work. It measures how much air you can inhale, how much you can exhale and how quickly you can exhale. It's non-invasive and helps diagnose conditions like asthma or COPD.
42 services31 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
24 services21 patients

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

Reported Quality Measures

e-Prescribing
At least one permissible prescription written by the MIPS eligible clinician is queried for a drug formulary and transmitted electronically using certified EHR technology.
92%2,958 patients3/55-star benchmark: 99%
Medication Reconciliation
The MIPS eligible clinician performs medication reconciliation for at least one transition of care in which the patient is transitioned into the care of the MIPS eligible clinician.
100%918 patients5/55-star benchmark: 100%
Patient-Specific Education
The MIPS eligible clinician must use clinically relevant information from CEHRT to identify patient-specific educational resources and provide access to those materials to at least one unique patient seen by the MIPS eligible clinician.
66%1,428 patients3/55-star benchmark: 97%
Provide Patient Access
At least one patient seen by the MIPS eligible clinician during the performance period is provided timely access to view online, download, and transmit to a third party their health information subject to the MIPS eligible clinician's discretion to withhold…
100%1,428 patients5/55-star benchmark: 100%
Secure Messaging
For at least one unique patient seen by the MIPS eligible clinician during the performance period, a secure message was sent using the electronic messaging function of CEHRT to the patient (or the patient-authorized representative), or in response to a secure…
29%1,428 patients2/55-star benchmark: 89%
View, Download, or Transmit (VDT)
At least one patient seen by the MIPS eligible clinician during the performance period (or patient-authorized representative) views, downloads or transmits their health information to a third party during the performance period.
47%1,428 patients
Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

Other Providers at the Same Location NPPES 2

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

Internal Medicine (Allergy & Immunology)
19851 OBSERVATION DR STE 375
GERMANTOWN, MD 20876
Allergy & Immunology
19851 OBSERVATION DR STE 375
GERMANTOWN, MD 20876

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 Leon Kao's NPI number?

The NPI number for Leon Kao is 1265639728. It was assigned to this individual provider in the NPPES registry on June 28, 2007.

Where is Leon Kao located?

Leon Kao practices at 19851 Observation Dr Ste 375, Germantown, MD 20876. The listed phone number is (301) 972-3709.

What is Leon Kao's specialty?

The primary specialty registered for this NPI is Allergy & Immunology, specializing in Allergy, with taxonomy code 207KA0200X.

Is Leon Kao enrolled in Medicare?

Yes. Leon Kao 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 Leon Kao was last updated on September 5, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years 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.