Chi-Chen Mao, MD
Neurology Physician · South San Francisco, CA
Chi-Chen Mao, MD is a neurology physician with a practice address in South San Francisco, California, and NPI 1467530055, issued on Nov 1, 2006. Check the license (California A44396, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Chi-Chen Mao
- Credential
- MD
- Primary taxonomy
- Neurology Physician 2084N0400X
- License number
- A44396 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1200 EL Camino Real, South San Francisco, CA 94080
- Phone
- (650) 742-2000
- 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
- 00A443960 CA
- Medicare enrollment
- Enrolled (PECOS I20110104001281); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest neurology physician records → All 2,339 in California → Look up another NPI →
Also registered at 1200 EL Camino Real
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Lena AlazzehPhysical Therapist1629739859
- Kate AlbeePhysical Therapist1053464495
- Jason Anderson, MDHospitalist Physician1831277466
- Karl Anderson, MDUrology Physician1700964301
Verify Chi-Chen Mao in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A44396Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
79% fewer Medicare Part D claims than the average neurology physician in 2024
290 Medicare Part D claims for 100 beneficiaries, against an average of 1,370 among the 15,005 providers of this specialty who prescribed in Part D.
Most prescribed
- Memantine Hcl40 claims
- Carbidopa-Levodopa34 claims
- Gabapentin27 claims
- Donepezil Hcl17 claims
- Levetiracetam15 claims
- Avonex (4 Pack)14 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 MIPS final score for 2023 (Medicare payment program): 96.5 of 100
The Merit-based Incentive Payment System score is reported for this clinician. 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; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $17.69
1 payment: food and beverage; the largest payer was Amgen Inc. 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
- Dignity Health Medical FoundationBelmont, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Chi-Chen Mao among 2,339 neurology physician records in California
Chi-Chen Mao, MD 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 2006, is newer than 4% of them.
- NPI issued2006 · 4% of these records are older, 59% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 70% of these records are
- Graduated1979 · median 2006 among the 1,628 with a school on file
- Record last updated2021 · 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 South San Francisco → Neurology Physician nationwide →
The 8 neurology physician records with the nearest ZIP codes
- Rouzbeh Fateh, M.DSouth San Francisco, CA 940801215270533
- Craig Hou, MDSouth San Francisco, CA 940801629157755
- Mujahid Mahmood, MDSouth San Francisco, CA 940801699853226
- Connie Wu, MDSouth San Francisco, CA 940801063916286
- Melanie Brandabur, MDSunnyvale, CA 940851700815925
- Grace Liang, M.D.Sunnyvale, CA 940851134156169
- Thynn Lynn, M.D.Sunnyvale, CA 940851528164894
- Andrew Hsu, M.D.Sunnyvale, CA 940871366426694
Common questions
What is Chi-Chen Mao, MD's NPI number?
Chi-Chen Mao, MD's National Provider Identifier (NPI) is 1467530055, issued on Nov 1, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Chi-Chen Mao, MD located?
The NPPES record lists a practice address at 1200 EL Camino Real, South San Francisco, CA, 94080. Phone: (650) 742-2000. Providers update this record themselves, so call before visiting.
How can I verify Chi-Chen Mao, MD's license?
NPPES lists California license number A44396, 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 Chi-Chen Mao, MD prescribe under Medicare Part D?
In 2024, Chi-Chen Mao, MD had 290 Medicare Part D claims for 100 beneficiaries; the average among neurology physician prescribers was 1,370. Part D covers Medicare prescriptions only.
What is Chi-Chen Mao, MD's MIPS final score?
The 2023 MIPS final score is 96.5 of 100. 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.