HARRISON HASANUDDIN D.O.
NPI 1790165785
Family Medicine - Sleep Medicine in Monterey Park, CA

Q: What is Harrison Hasanuddin's NPI number?

The NPI number for Harrison Hasanuddin is 1790165785. It was assigned to this individual provider in the NPPES registry on June 4, 2015.

Q: What is Harrison Hasanuddin's specialty?

The primary specialty registered for this NPI is Family Medicine, specializing in Sleep Medicine, with taxonomy code 207QS1201X.

Active since June 04, 2015PECOS EnrolledAccepts Medicare Assignment

420 N GARFIELD AVE STE 203, MONTEREY PARK, CA 91754(626) 763-1899(626) 547-4438 Get Directions Write a Review

NPPES record last updated: June 22, 2025. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Jun 22, 2025, Nov 5, 2024, Jul 11, 2023 and 1 more (4 updates tracked since 2021).

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About Harrison Hasanuddin D.o. NPPES

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

HARRISON HASANUDDIN D.O. (NPI 1790165785) is an individual sleep medicine provider in Monterey Park, California, licensed in California (20A16309) and active in the NPI registry since June 2015. He is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of Arizona College Of Osteopathic Medicine Mid Western University (2015).

NPPES Registry Identity

NPI1790165785

Entity TypeIndividualMale

Primary Taxonomy207QS1201X

Provider Legal NameHARRISON HASANUDDINCredential: D.O.

Location Address420 N GARFIELD AVE STE 203Monterey Park, CA 91754-1206

Mailing Address420 N Garfield Ave Ste 203Monterey Park, CA 91754-1206 · (626) 763-1899 · Fax (626) 547-4438

Phone(626) 763-1899

Fax(626) 547-4438

Sole ProprietorYes

Medical School CMSArizona College Of Osteopathic Medicine Mid Western UniversityGraduated 2015

Enumeration DateJune 4, 2015

Last NPPES UpdateJune 22, 20254 updates tracked since enumeration

NPPES CertifiedJune 22, 2025

✔ NPI 1790165785 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyFamily Medicine · Sleep MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207QS1201X

License✔ Licensed in CA · 20A16309

Definition

A Family Medicine Physician who practices Sleep Medicine is certified in the subspecialty of sleep medicine and specializes in the clinical assessment, physiologic testing, diagnosis, management and prevention of sleep and circadian rhythm disorders. Sleep specialists treat patients of any age and use multidisciplinary approaches. Disorders managed by sleep specialists include, but are not limited to, sleep related breathing disorders, insomnia, hypersomnias, circadian rhythm sleep disorders, parasomnias and sleep related movement disorders.

Also ListedFamily MedicineTaxonomy 207Q00000X · License 20A16309 (CA)

Also ListedFamily Medicine · Obesity MedicineTaxonomy 207QB0002X · License 20A16309 (CA)

420 N GARFIELD AVE STE 203, Monterey Park, CA 91754

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Secondary Practice Locations 2

Location 1333 1st St Ste ASan Francisco, CA 94105-2661 · Phone (888) 803-3370

Location 2415 N Crescent Dr Ste 320Beverly Hills, CA 90210-6813 · Phone (888) 803-3370

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

Harrison Hasanuddin D.o. 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 ID8729376405

PECOS Enrollment IDI20190102002289, I20250527001045

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 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.

Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439

An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.

28 services28 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.

24 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.

16 services15 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 91754 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

$96.36 typical visit price

range $62.96 – $187.60

Typical copayment $24.09 (range $15.74 – $46.90)

Most-billed visit code 99203

Established Patient

$109.96 typical visit price

range $20.84 – $153.61

Typical copayment $27.49 (range $5.21 – $38.40)

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

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

HARRISON HASANUDDIN, D.O., INC.

Family Medicine (Sleep Medicine)

420 N GARFIELD AVE STE 203
MONTEREY PARK, CA 91754

Los Angeles County (626) 763-1899

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 Harrison Hasanuddin's NPI number?

The NPI number for Harrison Hasanuddin is 1790165785. It was assigned to this individual provider in the NPPES registry on June 4, 2015.

Where is Harrison Hasanuddin located?

Harrison Hasanuddin practices at 420 N Garfield Ave Ste 203, Monterey Park, CA 91754. The listed phone number is (626) 763-1899.

What is Harrison Hasanuddin's specialty?

The primary specialty registered for this NPI is Family Medicine, specializing in Sleep Medicine, with taxonomy code 207QS1201X.

Is Harrison Hasanuddin enrolled in Medicare?

Yes. Harrison Hasanuddin 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 Harrison Hasanuddin was last updated on June 22, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.