Harrison Hasanuddin, D.O.
Sleep Medicine (Family Medicine) Physician · Monterey Park, CA
Harrison Hasanuddin, D.O. is a sleep medicine (family medicine) physician with a practice address in Monterey Park, California, and NPI 1790165785, issued on Jun 4, 2015. Check the license (California 20A16309, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Harrison Hasanuddin
- Credential
- D.O.
- Primary taxonomy
- Sleep Medicine (Family Medicine) Physician 207QS1201X
- License number
- 20A16309 CA
Self-reported in NPPES; status is on the state search - Practice location
- 420 N Garfield Ave Ste 203, Monterey Park, CA 91754
- Phone
- (626) 763-1899
- Enumerated
- Jun 4, 2015
- Record last updated
- Jun 22, 2025
- Fax
- (626) 547-4438
- Medicare enrollment
- Enrolled (PECOS I20190102002289); accepts Medicare assignment
- Medical or professional school
- Arizona College Of Osteopathic Medicine Mid Western University, 2015
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest sleep medicine (family medicine) physician records → All 35 in California → Look up another NPI →
Verify Harrison Hasanuddin in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A16309Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
8.2 times the Medicare Part D claims of the average sleep medicine (family medicine) physician in 2024
5,852 Medicare Part D claims for 712 beneficiaries, against an average of 718 among the 211 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of claims.
Most prescribed
- Atorvastatin Calcium347 claims
- Amlodipine Besylate342 claims
- Losartan Potassium285 claims
- Rosuvastatin Calcium160 claims
- Fluticasone Propionate141 claims
- Tamsulosin Hcl137 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $1,439.43
69 payments; by number, the most common kind was food and beverage; the largest payer was Amgen Inc. The 171 providers of this specialty with any payment received $4,214.24 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 2 group practices
- Sleep Reset Medical Group OF California PCSan Francisco, CA
- Sleep Reset Medical Group PAChicago, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Harrison Hasanuddin among 35 sleep medicine (family medicine) physician records in California
Harrison Hasanuddin, D.O. is one of 35 sleep medicine (family medicine) physician records with a practice address in California. 86% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 54% of them.
- NPI issued2015 · 54% of these records are older, 43% newer
- In a Medicare fileYes · 86% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated2015 · median 2013 among the 24 with a school on file
- Record last updated2025 · 17% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207QS1201X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Sleep Medicine (Family Medicine) Physician providers in California
There are 35 sleep medicine (family medicine) physician records in California.
All 35 in California → Every provider in Monterey Park → Sleep Medicine (Family Medicine) Physician nationwide →
The 8 sleep medicine (family medicine) physician records with the nearest ZIP codes
- Kinjal Madhav, M.D.Carlsbad, CA 920111124385182
- Christina Finch, MDSan Diego, CA 921031598255325
- Andrew Gamache, DDSSan Diego, CA 921031043317720
- Joseph Dombrowsky, M.D.San Diego, CA 921231578723151
- Kevin Byrne, MDSan Diego, CA 921281114251477
- Kevin Nguyen, MDWoodland Hills, CA 913671932548310
- Valentin Nuzhny, M.D.Mecca, CA 922541760918734
- Noemi Arroyo ArroyoFontana, CA 923351053250696
Common questions
What is Harrison Hasanuddin, D.O.'s NPI number?
Harrison Hasanuddin, D.O.'s National Provider Identifier (NPI) is 1790165785, issued on Jun 4, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Harrison Hasanuddin, D.O. located?
The NPPES record lists a practice address at 420 N Garfield Ave Ste 203, Monterey Park, CA, 91754. Phone: (626) 763-1899. Providers update this record themselves, so call before visiting.
How can I verify Harrison Hasanuddin, D.O.'s license?
NPPES lists California license number 20A16309, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Harrison Hasanuddin, D.O. prescribe under Medicare Part D?
In 2024, Harrison Hasanuddin, D.O. had 5,852 Medicare Part D claims for 712 beneficiaries; the average among sleep medicine (family medicine) physician prescribers was 718. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.