Jennifer Huyen Macewan, M.D.
Otolaryngology Physician · Poway, CA
Jennifer Huyen Macewan, M.D. is an otolaryngology physician with a practice address in Poway, California, and NPI 1336382019, issued on Apr 11, 2009. Check the license (California A113181, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Jennifer Huyen Macewan
- Credential
- M.D.
- Primary taxonomy
- Otolaryngology Physician 207Y00000X
- License number
- A113181 CA
Self-reported in NPPES; status is on the state search - Practice location
- 12630 Monte Vista RD, Poway, CA 92064
- Phone
- (858) 674-1165
- Enumerated
- Apr 11, 2009
- Record last updated
- May 1, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (858) 312-1312
- Medicare enrollment
- Enrolled (PECOS I20150120001380); accepts Medicare assignment
- Medical or professional school
- Eastern Virginia Medical School, 2009
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest otolaryngology physician records → All 1,212 in California → Look up another NPI →
Also registered at 12630 Monte Vista RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Robert Barr, MDPediatrics Physician1477599298
- Cassondra Graff, LCSWClinical Social Worker1396950820
- Mary Hall, PTPhysical Therapist1154330496
- Helena Jayasuriya, L.C.S.W.Clinical Social Worker1700119880
- Jayma Kim, M.F.T.Marriage & Family Therapist1447467212
- Robert Marcus, D.M.D.General Practice Dentistry1053449496
Verify Jennifer Huyen Macewan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A113181Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
40% fewer Medicare Part D claims than the average otolaryngology physician in 2024
325 Medicare Part D claims for 147 beneficiaries, against an average of 541 among the 8,339 providers of this specialty who prescribed in Part D. 11 claims were for opioids.
Most prescribed
- Fluticasone Propionate55 claims
- Omeprazole44 claims
- Azelastine Hcl27 claims
- Ipratropium Bromide22 claims
- Prednisone20 claims
- Doxycycline Hyclate15 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.
No measured MIPS final score for 2023
CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $302.83
11 payments; by number, the most common kind was food and beverage; the largest payer was Inspire Medical Systems, Inc. The 6,429 providers of this specialty with any payment received $1,922.50 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 one group practice
- Ashish K. Wadha MD A Medical CorporationPoway, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Jennifer Huyen Macewan among 1,212 otolaryngology physician records in California
Jennifer Huyen Macewan, M.D. is one of 1,212 otolaryngology physician records with a practice address in California. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 65% of them.
- NPI issued2009 · 65% of these records are older, 31% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 67% of these records are
- Graduated2009 · median 2004 among the 818 with a school on file
- Record last updated2018 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Y00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Otolaryngology Physician providers in California
There are 1,212 otolaryngology physician records in California.
All 1,212 in California → Every provider in Poway → Otolaryngology Physician nationwide →
The 8 otolaryngology physician records with the nearest ZIP codes
- Diana Chang, MDPoway, CA 920641578143491
- Patrick Fitzgerald, M.D.Poway, CA 920641790882728
- Alison Learn, M.D.Poway, CA 920641477650406
- George Sachs, MDPoway, CA 920641073770376
- Ashish Wadhwa, MDPoway, CA 920641477595189
- Julie Berry, M.D.Oceanside, CA 920561699724666
- Robert Jacobs, MDOceanside, CA 920561023028446
- Anton Kushnaryov, M.D.Oceanside, CA 920561023246089
Common questions
What is Jennifer Huyen Macewan, M.D.'s NPI number?
Jennifer Huyen Macewan, M.D.'s National Provider Identifier (NPI) is 1336382019, issued on Apr 11, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Jennifer Huyen Macewan, M.D. located?
The NPPES record lists a practice address at 12630 Monte Vista RD, Poway, CA, 92064. Phone: (858) 674-1165. Providers update this record themselves, so call before visiting.
How can I verify Jennifer Huyen Macewan, M.D.'s license?
NPPES lists California license number A113181, 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 Jennifer Huyen Macewan, M.D. prescribe under Medicare Part D?
In 2024, Jennifer Huyen Macewan, M.D. had 325 Medicare Part D claims for 147 beneficiaries; the average among otolaryngology physician prescribers was 541. Part D covers Medicare prescriptions only.
What is Jennifer Huyen Macewan, M.D.'s MIPS final score?
CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.
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.