Lyn S. Aborn, MD
Emergency Medicine Physician · Hayward, CA
Lyn S. Aborn, MD is an emergency medicine physician with a practice address in Hayward, California, and NPI 1891873659, issued on Nov 1, 2006. Check the license (California A92202, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Lyn S. Aborn
- Credential
- MD
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- A92202 CA
Self-reported in NPPES; status is on the state search - Practice location
- 27400 Hesperian Blvd, Hayward, CA 94545
- Phone
- (510) 784-4000
- Enumerated
- Nov 1, 2006
- Record last updated
- Dec 13, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicaid ID
- 00A922020 CA
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 7,751 in California → Look up another NPI →
Also registered at 27400 Hesperian Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Lyn S. Aborn in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A92202Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
82% fewer Medicare Part D claims than the average emergency medicine physician in 2024
40 Medicare Part D claims for 30 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D.
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.
Lyn S. Aborn among 7,751 emergency medicine physician records in California
Lyn S. Aborn, MD is one of 7,751 emergency medicine physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 4% of them.
- NPI issued2006 · 4% of these records are older, 60% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileNo · 59% of these records are
- Record last updated2021 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
26 emergency medicine physician records list a practice address in Hayward
They are 26 of the 3,993 NPPES records with a practice address in Hayward, and 7,751 emergency medicine physician records in California.
All 7,751 in California → Every provider in Hayward → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Eric Anderson, MDHayward, CA 945451417035262
- Robert Blum, MDHayward, CA 945451730267592
- Jeremy Graff, M.DHayward, CA 945451669491429
- Shao-I Huang, D.O.Hayward, CA 945451215031455
- Tan Nguyen, M.D.Hayward, CA 945451437173754
- Aaron Pessl, M.D.Hayward, CA 945451063425072
- Lisa Pinsky, MDHayward, CA 945451831277680
- Julie Schwengels, MDHayward, CA 945451639257496
Common questions
What is Lyn S. Aborn, MD's NPI number?
Lyn S. Aborn, MD's National Provider Identifier (NPI) is 1891873659, issued on Nov 1, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Lyn S. Aborn, MD located?
The NPPES record lists a practice address at 27400 Hesperian Blvd, Hayward, CA, 94545. Phone: (510) 784-4000. Providers update this record themselves, so call before visiting.
How can I verify Lyn S. Aborn, MD's license?
NPPES lists California license number A92202, 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 Lyn S. Aborn, MD prescribe under Medicare Part D?
In 2024, Lyn S. Aborn, MD had 40 Medicare Part D claims for 30 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.