NPPES file of Aug 9, 2026

Peter D. G. Chang Sing, M.D.

Clinical Cardiac Electrophysiology Physician · Santa Rosa, CA

Peter D. G. Chang Sing, M.D. is a clinical cardiac electrophysiology physician with a practice address in Santa Rosa, California, and NPI 1386678902, issued on Jul 10, 2006. Check the license (California G59460, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1386678902
Name
Peter D. G. Chang Sing
Credential
M.D.
Primary taxonomy
Clinical Cardiac Electrophysiology Physician 207RC0001X
License number
G59460 CA
Self-reported in NPPES; status is on the state search
Practice location
500 Doyle Park Dr, Santa Rosa, CA 95405
Phone
(707) 573-7070
Enumerated
Jul 10, 2006
Record last updated
Dec 3, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(707) 573-7519
Medicaid ID
00G594601 CA
Medicare enrollment
Enrolled (PECOS I20100927001394); accepts Medicare assignment
Medical or professional school
Yale University School Of Medicine, 1985
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 500 Doyle Park Dr

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Nicholas Anton, MDInternal Medicine Physician1659364933
  2. Razi Arifuddin, MDGastroenterology Physician1124085410
  3. Chad Barylski, NP-C, RN, DC, DACBSPNurse Practitioner1932358553
  4. Joshua Beirne, M.D.Gastroenterology Physician1841216041
  5. George Bisbee, MDInternal Medicine Physician1235122516
  6. Deborah Britt, M.D.Pediatrics Physician1316959307

Verify Peter D. G. Chang Sing in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G59460
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

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36% more Medicare Part D claims than the average clinical cardiac electrophysiology physician in 2024

2,334 Medicare Part D claims for 400 beneficiaries, against an average of 1,710 among the 3,173 providers of this specialty who prescribed in Part D. Brand-name drugs were 36% of claims.

  1. Peter Chang Sing2,334
  2. Specialty average1,710

Most prescribed

  1. Eliquis387 claims
  2. Amiodarone Hcl299 claims
  3. Flecainide Acetate261 claims
  4. Entresto154 claims
  5. Metoprolol Succinate152 claims
  6. Multaq114 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.

Industry payments in 2024: $2,707.81

37 payments; by number, the most common kind was food and beverage; the largest payer was Medtronic, Inc. The 3,167 providers of this specialty with any payment received $10,651.37 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Peter Chang Sing$2,708
  2. Specialty average$10,651

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

  1. Providence Medical FoundationSanta Rosa, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Peter D. G. Chang Sing among 304 clinical cardiac electrophysiology physician records in California

Peter D. G. Chang Sing, M.D. is one of 304 clinical cardiac electrophysiology physician records with a practice address in California. 93% 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 7% of them.

  • NPI issued2006 · 7% of these records are older, 58% newer
  • In a Medicare fileYes · 93% of these records are
  • In the CMS Doctors and Clinicians fileYes · 87% of these records are
  • Graduated1985 · median 2002 among the 261 with a school on file
  • Record last updated2021 · 54% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0001X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Clinical Cardiac Electrophysiology Physician providers in California

There are 304 clinical cardiac electrophysiology physician records in California.

The 8 clinical cardiac electrophysiology physician records with the nearest ZIP codes

  1. Kriegh Moulton, M.D.Santa Rosa, CA 954031174605166
  2. Raman Moradkhan, MDModesto, CA 953551427025766
  3. Lawrence Waspe, MDModesto, CA 953551497718704
  4. Navneet Dullet, MDModesto, CA 953501073680971
  5. Walter Chien, MDStockton, CA 952041386615631
  6. Rashaad Chothia, MDStockton, CA 952041285897892
  7. Cyrus Szeto-Wong, M.D.San Jose, CA 951281306166343
  8. Dwain Coggins, M.D.San Jose, CA 951241598721318

Common questions

What is Peter D. G. Chang Sing, M.D.'s NPI number?

Peter D. G. Chang Sing, M.D.'s National Provider Identifier (NPI) is 1386678902, issued on Jul 10, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Peter D. G. Chang Sing, M.D. located?

The NPPES record lists a practice address at 500 Doyle Park Dr, Santa Rosa, CA, 95405. Phone: (707) 573-7070. Providers update this record themselves, so call before visiting.

How can I verify Peter D. G. Chang Sing, M.D.'s license?

NPPES lists California license number G59460, 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 Peter D. G. Chang Sing, M.D. prescribe under Medicare Part D?

In 2024, Peter D. G. Chang Sing, M.D. had 2,334 Medicare Part D claims for 400 beneficiaries; the average among clinical cardiac electrophysiology physician prescribers was 1,710. 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.