HAROLD E QUAN
NPI 1033220256
Internal Medicine - Cardiovascular Disease in Newhall, CA

Q: What is Harold Quan's NPI number?

The NPI number for Harold Quan is 1033220256. It was assigned to this individual provider in the NPPES registry on August 31, 2006.

Q: What is Harold Quan's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.

Q: When was this NPI record last updated?

The NPPES record for Harold Quan was last updated on February 3, 2014. NPI Profile syncs with the weekly NPPES data releases published by CMS.

Active since August 31, 2006PECOS EnrolledAccepts Medicare Assignment

20.72/100

CMS Quality Rating

23928 LYONS AVE, SUITE 101, NEWHALL, CA 91321(661) 255-8321(661) 255-0338 Get Directions Write a Review

NPPES record last updated: February 3, 2014. Verified against the NPPES registry weekly; last sync: July 19, 2026.

On this page

About Harold E Quan NPPES

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

HAROLD E QUAN (NPI 1033220256) is an individual cardiovascular disease provider in Newhall, California, licensed in California (A34182) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS and is a graduate of Other (1972).

NPPES Registry Identity

NPI1033220256

Entity TypeIndividualMale

Primary Taxonomy207RC0000X

Provider Legal NameHAROLD E QUAN

Location Address23928 LYONS AVE, SUITE 101Newhall, CA 91321-2409

Mailing Address23928 Lyons Ave, Suite 101Newhall, CA 91321-2409 · (661) 255-8321 · Fax (661) 255-0338

Phone(661) 255-8321

Fax(661) 255-0338

Sole ProprietorNo

Medical School CMSOtherGraduated 1972

Enumeration DateAugust 31, 2006

Last NPPES UpdateFebruary 3, 2014

✔ NPI 1033220256 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Cardiovascular DiseaseAllopathic & Osteopathic Physicians

Taxonomy Code207RC0000X

License✔ Licensed in CA · A34182

Definition

An internist who specializes in diseases of the heart and blood vessels and manages complex cardiac conditions such as heart attacks and life-threatening, abnormal heartbeat rhythms.

23928 LYONS AVE, Newhall, CA 91321

Open in Google Maps ↗

Other Names 1

Other Name (5)Harold E Quan M.d.

Other Identifiers 5

Medicare PINBU573Z

OtherA34182CA · California State License

OtherP00627080Rr Medicare

Medicare UPINA27406

Medicaid00A341820CA

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

Harold E Quan 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 ID5496819468

PECOS Enrollment IDI20090210000331

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 24

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.

1,233 services318 patients

Management using the results of remote vital sign monitoring per calendar month, first 20 minutes 99457

This service involves reviewing and managing your health data, which is remotely monitored and collected. Your vital signs like heart rate and blood pressure are tracked regularly throughout the month. The first 20 minutes of this data analysis per month is included in this service.

438 services43 patients

Remote monitoring of physiologic parameters, initial supply of devices with daily recordings or programmed alerts transmission, each 30 days 99454

This service involves using devices to remotely track body functions like heart rate or blood pressure. These devices, provided initially, record data daily or send alerts if readings are abnormal. The service is renewed every 30 days.

426 services43 patients

Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 93000

An electrocardiogram (ECG) is a non-invasive test that records your heart's electrical activity. Using 12 leads attached to your body, it captures data to help identify heart conditions. A doctor interprets the results and provides a report.

310 services228 patients

Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 93010

A routine electrocardiogram (ECG) with 12 leads is a simple, non-invasive test that records the electrical activity of your heart. It helps in identifying heart conditions by detecting irregularities in your heart rhythms. The results are interpreted and a report is provided.

290 services243 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.

211 services37 patients

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.

169 services27 patients

Ultrasound of heart with color-depicted blood flow, rate, direction and valve function 93306

This is a heart ultrasound, also known as an echocardiogram. It uses sound waves to create pictures of your heart, showing how blood flows through it. The color depicts the blood flow's speed and direction. It also checks the heart's valves to ensure they're working properly.

120 services118 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.

115 services95 patients

Physician or allowed practitioner supervision of a patient receiving medicare-covered services provided by a participating home health agency (patient not present) requiring complex and multidisciplinary care modalities involving regular physician or allow G0181

This service involves a physician overseeing your care while you receive Medicare-covered services from a home health agency. The care you're receiving is complex and involves various disciplines. The physician isn't physically present but regularly supervises your treatment to ensure optimal health outcomes.

75 services24 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.

37 services32 patients

Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222

Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.

32 services28 patients

New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205

This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.

30 services30 patients

Electrocardiogram (ecg) 2-day continuous with review and report by health care professional 93224

An Electrocardiogram (ECG) is a non-invasive test that records the electrical activity of your heart. In a 2-day continuous ECG, sensors attached to your chest monitor your heart's rhythm over 48 hours. A healthcare professional then reviews the data to identify any irregularities.

27 services27 patients

Transitional care management services for problem of high complexity 99496

Transitional care management services are designed to ensure a smooth transition from a hospital to home or another care setting for patients with complex health issues. These services include medication management, patient education, and coordination with healthcare providers.

27 services25 patients

Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and G0180

This is a service where a doctor or authorized practitioner certifies that you require Medicare-covered home health services. They will communicate with the home health agency and review reports on your health status to ensure you receive appropriate care. This does not involve an in-person visit.

25 services21 patients

Programming of dual lead pacemaker system 93280

Programming of a dual lead pacemaker system is a procedure to adjust your heart's pacemaker settings. This process involves a small device, called a programmer, that communicates with your pacemaker to ensure it's working optimally for your heart's needs.

24 services13 patients

Ultrasound of heart with color-depicted blood flow, rate, direction and valve function 93306

24 services24 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.

22 services18 patients

Management using the results of remote vital sign monitoring per calendar month, each additional 20 minutes 99458

This service involves analyzing your vital signs, like heart rate and blood pressure, remotely collected over a month. Each additional 20 minutes spent on management refers to extra time spent reviewing, interpreting your data, and planning your care. It's a critical part of ensuring your wellbeing.

22 services14 patients

Hospital discharge day management, more than 30 minutes 99239

Hospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.

21 services19 patients

Transitional care management services for problem of at least moderate complexity 99495

Transitional care management services focus on coordinating and managing your care after you leave the hospital. For moderate complexity problems, this involves managing your medications, arranging further treatments, and ensuring you have the necessary follow-ups.

15 services15 patients

Exercise or drug-induced heart stress test with electrocardiogram (ecg) with supervision by physician 93016

An exercise or drug-induced heart stress test with ECG involves monitoring your heart's activity while it's under stress, either from exercise or medication. A doctor supervises the entire procedure to ensure safety and accuracy in results. This test helps detect heart problems.

14 services14 patients

Exercise or drug-induced heart stress test with electrocardiogram (ecg) with review by physician 93018

An exercise or drug-induced heart stress test with ECG is a procedure to assess how your heart functions under stress. It can involve exercising or medication to make your heart work harder while an ECG records its activity. A physician reviews the results.

13 services13 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 91321 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

$142.39 typical visit price

range $62.96 – $187.60

Typical copayment $35.59 (range $15.74 – $46.90)

Most-billed visit code 99204

Established Patient

$77.96 typical visit price

range $20.84 – $153.61

Typical copayment $19.49 (range $5.21 – $38.40)

Most-billed visit code 99213

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

20.72/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Individually scored

Quality

Improvement Activities

Cost

69.07

Referred Medical Equipment & Supplies CMS DME claims 7

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

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253

DME-Other DME · category DE017N

8 suppliers21 claims43 services$6.66 avg. paid by Medicare

Lancets, per box of 100 A4259

DME-Medical/Surgical Supplies · category DA000N

4 suppliers11 claims15 services$1.23 avg. paid by Medicare

Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing E0431

DME-Oxygen and Supplies · category DC000N

2 suppliers25 claims29 services$14.90 avg. paid by Medicare

Nebulizer, with compressor E0570

DME-Other DME · category DE000N

2 suppliers29 claims31 services$3.02 avg. paid by Medicare

Rollabout chair, any and all types with casters 5" or greater E1031

DME-Wheelchairs · category DD000N

2 suppliers11 claims11 services$24.44 avg. paid by Medicare

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

2 suppliers29 claims34 services$72.26 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 20

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

WENDY GLASGOW CLOUGH M.D.

Internal Medicine (Infectious Disease)

23928 LYONS AVE, 208
NEWHALL, CA 91321

Los Angeles County (661) 255-8544

MICHAEL GIN QUON M.D.

Internal Medicine (Gastroenterology)

23928 LYONS AVE, SUITE 206
NEWHALL, CA 91321

Los Angeles County (661) 799-0615

HIMANSHU VAJRIN WICKRAMASINGHE M.D.

Internal Medicine (Pulmonary Disease)

23928 LYONS AVE, SUITE 203
NEWHALL, CA 91321

Los Angeles County (661) 254-7216

HAROLD E QUAN M D INC

Internal Medicine (Cardiovascular Disease)

23928 LYONS AVE, SUITE 101
NEWHALL, CA 91321

Los Angeles County (661) 255-8320

FLOYD A KATSKE M.D.

Urology

23928 LYONS AVE, SUITE 202
NEWHALL, CA 91321

Los Angeles County (661) 254-2777

DR. RAJINDER KAUSHAL M.D.

Internal Medicine (Gastroenterology)

23928 LYONS AVE, SUITE 206
NEWHALL, CA 91321

Los Angeles County (661) 799-0615

STEVEN HARVEY BARON MD PHD

Internal Medicine (Endocrinology, Diabetes & Metabolism)

23928 LYONS AVE, #107
NEWHALL, CA 91321

Los Angeles County (661) 254-2220

LA VOTRE RX

Pharmacy (Community/Retail Pharmacy)

23928 LYONS AVE, 102
NEWHALL, CA 91321

Los Angeles County (661) 259-8039

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 Harold Quan's NPI number?

The NPI number for Harold Quan is 1033220256. It was assigned to this individual provider in the NPPES registry on August 31, 2006.

Where is Harold Quan located?

Harold Quan practices at 23928 Lyons Ave Suite 101, Newhall, CA 91321. The listed phone number is (661) 255-8321.

What is Harold Quan's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.

Is Harold Quan enrolled in Medicare?

Yes. Harold Quan 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 Harold Quan was last updated on February 3, 2014. NPI Profile syncs with the weekly NPPES data releases published by CMS.