May Kam, D.O.
Hospitalist Physician · Irvine, CA
May Kam, D.O. is a hospitalist physician with a practice address in Irvine, California, and NPI 1437500162, issued on Jun 23, 2016. Check the license (California 20A16889, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- May Kam
- Credential
- D.O.
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License number
- 20A16889 CA
Self-reported in NPPES; status is on the state search - Practice location
- 16200 Sand Canyon Ave, Irvine, CA 92618
- Phone
- (888) 655-9463
- Enumerated
- Jun 23, 2016
- Record last updated
- Nov 1, 2022
- Medicare enrollment
- Enrolled (PECOS I20201119003036); accepts Medicare assignment
- Medical or professional school
- Western University Of Health Sciences College Of Dental Med, 2017
- Entity
- Type 1 · individual
8 nearest hospitalist physician records → All 3,099 in California → Look up another NPI →
Also registered at 16200 Sand Canyon Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Christine AyalaNurse Practitioner1831879154
- Nicholas Bove, MDEmergency Medicine Physician1255837837
- David Calica, M.D.Anesthesiology Physician1780787606
- Danielle CarlsonRegistered Nurse1710850409
- John Chien, M.D.Hospitalist Physician1790043651
- Michael Cho, M.D.Hospitalist Physician1184915001
Verify May Kam in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A16889Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
48% fewer Medicare Part D claims than the average hospitalist physician in 2024
271 Medicare Part D claims for 131 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D.
Most prescribed
- Cefdinir28 claims
- Furosemide19 claims
- Amoxicillin-Clavulanate Potass18 claims
- Atorvastatin Calcium13 claims
- Carvedilol11 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 44 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $25.57
1 payment: food and beverage; the largest payer was Janssen Pharmaceuticals, Inc. The 7,324 providers of this specialty with any payment received $494.84 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
- Pacific Hospitalist Associates A Medical CorporationNewport Beach, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
May Kam among 3,099 hospitalist physician records in California
May Kam, D.O. is one of 3,099 hospitalist physician records with a practice address in California. 90% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 70% of them.
- NPI issued2016 · 70% of these records are older, 26% newer
- In a Medicare fileYes · 90% of these records are
- In the CMS Doctors and Clinicians fileYes · 81% of these records are
- Graduated2017 · median 2010 among the 2,505 with a school on file
- Record last updated2022 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hospitalist Physician providers in California
There are 3,099 hospitalist physician records in California.
All 3,099 in California → Every provider in Irvine → Hospitalist Physician nationwide →
The 8 hospitalist physician records with the nearest ZIP codes
- Ali Ahoui, MDIrvine, CA 926181093964769
- Robert Cho, M.D.Irvine, CA 926181760578512
- Scott Derkum, MDIrvine, CA 926181588660849
- John Dieckhoff, M.D.Irvine, CA 926181700068152
- Veejay Geria, M.D.Irvine, CA 926181821193467
- Derrick Hong, M.DIrvine, CA 926181124040696
- Nam Kim, MDIrvine, CA 926181861572513
- Ewa Kontny, M.D.Irvine, CA 926181598916587
Common questions
What is May Kam, D.O.'s NPI number?
May Kam, D.O.'s National Provider Identifier (NPI) is 1437500162, issued on Jun 23, 2016. An NPI identifies a provider in billing; it is not a license.
Where is May Kam, D.O. located?
The NPPES record lists a practice address at 16200 Sand Canyon Ave, Irvine, CA, 92618. Phone: (888) 655-9463. Providers update this record themselves, so call before visiting.
How can I verify May Kam, D.O.'s license?
NPPES lists California license number 20A16889, 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 May Kam, D.O. prescribe under Medicare Part D?
In 2024, May Kam, D.O. had 271 Medicare Part D claims for 131 beneficiaries; the average among hospitalist physician prescribers was 521. Part D covers Medicare prescriptions only.
What is May Kam, D.O.'s MIPS final score?
The 2023 MIPS final score is 44 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.