Adelyn Tu-Chan, D.O.
Neurology Physician · Alameda, CA
Adelyn Tu-Chan, D.O. is a neurology physician with a practice address in Alameda, California, and NPI 1720310329, issued on Feb 5, 2010. Check the license (California 1720310329, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Adelyn Tu-Chan
- Credential
- D.O.
- Primary taxonomy
- Neurology Physician 2084N0400X
- License number
- 1720310329 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2142 Pacific Ave, Alameda, CA 94501
- Phone
- (510) 517-1789
- Enumerated
- Feb 5, 2010
- Record last updated
- Oct 8, 2018 (not updated in 8 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20181114003264); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest neurology physician records → All 2,339 in California → Look up another NPI →
Verify Adelyn Tu-Chan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 1720310329Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
95% fewer Medicare Part D claims than the average neurology physician in 2024
66 Medicare Part D claims for 16 beneficiaries, against an average of 1,370 among the 15,005 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Baclofen41 claims
- Gabapentin14 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): 74.5 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: $90.00
1 payment: food and beverage; the largest payer was Merz Pharmaceuticals, LLC. The 10,858 providers of this specialty with any payment received $8,318.07 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
- University OF California San FranciscoSan Francisco, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Adelyn Tu-Chan among 2,339 neurology physician records in California
Adelyn Tu-Chan, D.O. is one of 2,339 neurology 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 2010, is newer than 61% of them.
- NPI issued2010 · 61% of these records are older, 36% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 70% of these records are
- Graduated2009 · median 2006 among the 1,628 with a school on file
- Record last updated2018 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084N0400X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Neurology Physician providers in California
There are 2,339 neurology physician records in California.
All 2,339 in California → Every provider in Alameda → Neurology Physician nationwide →
The 8 neurology physician records with the nearest ZIP codes
- Claudine Dutaret, MDAlameda, CA 945011053321612
- Barbara McQuinn, M.D.Alameda, CA 945011578592192
- Robin Soffer, M.D.Alameda, CA 945011871712828
- Robyn Young, M.D.Alameda, CA 945011396775979
- Robert Cluff, MDAntioch, CA 945091982623484
- John Karan, M.D.Antioch, CA 945091720007545
- Steven Holtz, MDPleasant Hill, CA 945231952366932
- Janet Lin, MDPleasant Hill, CA 945231679536130
Common questions
What is Adelyn Tu-Chan, D.O.'s NPI number?
Adelyn Tu-Chan, D.O.'s National Provider Identifier (NPI) is 1720310329, issued on Feb 5, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Adelyn Tu-Chan, D.O. located?
The NPPES record lists a practice address at 2142 Pacific Ave, Alameda, CA, 94501. Phone: (510) 517-1789. Providers update this record themselves, so call before visiting.
How can I verify Adelyn Tu-Chan, D.O.'s license?
NPPES lists California license number 1720310329, 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 Adelyn Tu-Chan, D.O. prescribe under Medicare Part D?
In 2024, Adelyn Tu-Chan, D.O. had 66 Medicare Part D claims for 16 beneficiaries; the average among neurology physician prescribers was 1,370. Part D covers Medicare prescriptions only.
What is Adelyn Tu-Chan, D.O.'s MIPS final score?
The 2023 MIPS final score is 74.5 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.