Perkin Michael Shiu, MD
Cardiovascular Disease Physician · Walnut Creek, CA
Perkin Michael Shiu, MD is a cardiovascular disease physician with a practice address in Walnut Creek, California, and NPI 1134375272, issued on Aug 8, 2008. Check the license (California A89923, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Perkin Michael Shiu
- Credential
- MD
- Primary taxonomy
- Cardiovascular Disease Physician 207RC0000X
- License number
- A89923 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1450 Treat Blvd, Walnut Creek, CA 94597
- Phone
- (925) 937-1770
- Enumerated
- Aug 8, 2008
- Record last updated
- Aug 11, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (925) 937-0630
- Medicare enrollment
- Enrolled (PECOS I20090902000054); accepts Medicare assignment
- Medical or professional school
- University Of California, San Diego School Of Medicine, 2003
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest cardiovascular disease physician records → All 2,574 in California → Look up another NPI →
Also registered at 1450 Treat Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Cynthia AshbrookAllergy & Immunology Physician1386786408
- Chanda Banwat, M.D.Internal Medicine Physician1750584389
Verify Perkin Michael Shiu in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A89923Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.5 times the Medicare Part D claims of the average cardiovascular disease physician in 2024
7,635 Medicare Part D claims for 1,050 beneficiaries, against an average of 3,078 among the 20,728 providers of this specialty who prescribed in Part D. Brand-name drugs were 23% of claims.
Most prescribed
- Eliquis894 claims
- Atorvastatin Calcium776 claims
- Metoprolol Succinate729 claims
- Rosuvastatin Calcium601 claims
- Losartan Potassium421 claims
- Carvedilol400 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): 86.8 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: $4,312.67
100 payments; by number, the most common kind was food and beverage; the largest payer was Zoll Services LLC (a/k/a Zoll LifeCor Corp). The 16,686 providers of this specialty with any payment received $3,819.56 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
- John Muir Physician NetworkWalnut Creek, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Perkin Michael Shiu among 2,574 cardiovascular disease physician records in California
Perkin Michael Shiu, MD is one of 2,574 cardiovascular disease physician records with a practice address in California. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 67% of them.
- NPI issued2008 · 67% of these records are older, 28% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated2003 · median 1999 among the 1,742 with a school on file
- Record last updated2015 · 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 207RC0000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Cardiovascular Disease Physician providers in California
There are 2,574 cardiovascular disease physician records in California.
All 2,574 in California → Every provider in Walnut Creek → Cardiovascular Disease Physician nationwide →
The 8 cardiovascular disease physician records with the nearest ZIP codes
- Michael Brown, M.D.Walnut Creek, CA 945971093719056
- Paul Ho, M.DWalnut Creek, CA 945971730186677
- Carolyn Lacey, M.D.Walnut Creek, CA 945971295717411
- Jason Liu, M.D.Walnut Creek, CA 945971770945909
- Aneesha Thobani, MDWalnut Creek, CA 945971356882583
- Hennessey Tseng, M.D.Walnut Creek, CA 945971003811746
- Michael Bachik, MDWalnut Creek, CA 945961790863876
- Kristine Batten, MDWalnut Creek, CA 945981578599163
Common questions
What is Perkin Michael Shiu, MD's NPI number?
Perkin Michael Shiu, MD's National Provider Identifier (NPI) is 1134375272, issued on Aug 8, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Perkin Michael Shiu, MD located?
The NPPES record lists a practice address at 1450 Treat Blvd, Walnut Creek, CA, 94597. Phone: (925) 937-1770. Providers update this record themselves, so call before visiting.
How can I verify Perkin Michael Shiu, MD's license?
NPPES lists California license number A89923, 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 Perkin Michael Shiu, MD prescribe under Medicare Part D?
In 2024, Perkin Michael Shiu, MD had 7,635 Medicare Part D claims for 1,050 beneficiaries; the average among cardiovascular disease physician prescribers was 3,078. Part D covers Medicare prescriptions only.
What is Perkin Michael Shiu, MD's MIPS final score?
The 2023 MIPS final score is 86.8 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.