PETER D. G. CHANG SING M.D.
NPI 1386678902
Internal Medicine - Clinical Cardiac Electrophysiology in Santa Rosa, CA

Active since July 10, 2006PECOS EnrolledAccepts Medicare Assignment
500 DOYLE PARK DR, SUITE 302, SANTA ROSA, CA 95405(707) 573-7070(707) 573-7519 Get Directions Write a Review

NPPES record last updated: December 3, 2021. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Dec 3, 2021, Nov 10, 2021 (2 updates tracked since 2021).

About Peter D. G. Chang Sing M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

PETER D. G. CHANG SING M.D. (NPI 1386678902) is an individual clinical cardiac electrophysiology provider in Santa Rosa, California, licensed in California (G59460) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS and is a graduate of Yale University School Of Medicine (1985).

NPPES Registry Identity

NPI1386678902
Entity TypeIndividualMale
Primary Taxonomy207RC0001X
Provider Legal NamePETER D. G. CHANG SINGCredential: M.D.
Location Address500 DOYLE PARK DR, SUITE 302Santa Rosa, CA 95405-4558
Mailing Address500 Doyle Park Dr., Suite 302Santa Rosa, CA 95405-4559 · (707) 573-7070 · Fax (707) 573-7519
Fax(707) 573-7519
Sole ProprietorYes
Medical School CMSYale University School Of MedicineGraduated 1985
Enumeration DateJuly 10, 2006
Last NPPES UpdateDecember 3, 20212 updates tracked since enumeration
NPPES CertifiedDecember 3, 2021
NPI 1386678902 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyInternal Medicine · Clinical Cardiac ElectrophysiologyAllopathic & Osteopathic Physicians
Taxonomy Code207RC0001X
License Licensed in CA · G59460
Definition
A field of special interest within the subspecialty of cardiovascular disease, specialty of Internal Medicine, which involves intricate technical procedures to evaluate heart rhythms and determine appropriate treatment for them.
500 DOYLE PARK DR, Santa Rosa, CA 95405

Other Names 1

Other Name (5)Peter D. G. Chang Sing M.d.

Other Identifiers 1

Medicaid00G594601CA

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Peter D. G. Chang Sing M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID7416073473
PECOS Enrollment IDI20100927001394
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 43

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
1,102 services576 patients
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 93000
An electrocardiogram (ECG) is a non-invasive test that records your heart's electrical activity. Using 12 leads attached to your body, it captures data to help identify heart conditions. A doctor interprets the results and provides a report.
734 services410 patients
Evaluation of single, dual, multiple lead or leadless pacemaker system, remote up to 90 days 93294
This procedure evaluates your pacemaker system remotely for up to 90 days. It checks whether single, dual, multiple lead, or leadless pacemakers are working properly. It's a safe, convenient way to ensure your heart device is functioning optimally.
257 services83 patients
Heart rhythm recording of continous external ekg over 8-15 days 93246
A heart rhythm recording is a non-invasive procedure where a small device, attached externally, monitors your heart's electrical activity for 8-15 days. It helps detect irregular heart rhythms, assess heart rate, and guide treatment decisions. It's safe, painless, and can be done during normal daily activities.
217 services192 patients
Programming of heart rhythm stimulation after drug infusion 93623
Programming of heart rhythm stimulation after drug infusion is a process to regulate your heartbeat. After a medication is administered into your body, a device is programmed to monitor and correct irregular heart rhythms, ensuring your heart functions optimally.
190 services186 patients
Heart rhythm review and interpretation of continous external ekg over 8-15 days 93248
This service involves wearing a device for 8-15 days that continuously records your heart's electrical activity. It helps in identifying irregular heart rhythms. The recorded data is then reviewed and interpreted by a healthcare professional for any abnormalities.
174 services155 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 95405 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$142.00 typical visit price
range $63.04 – $187.01
Typical copayment $35.50 (range $15.76 – $46.75)
Most-billed visit code 99204
Established Patient
$109.88 typical visit price
range $21.02 – $153.40
Typical copayment $27.47 (range $5.25 – $38.35)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

Reported Quality Measures

Atrial Fibrillation and Atrial Flutter: Chronic Anticoagulation Therapy
Percentage of patients aged 18 years and older with nonvalvular atrial fibrillation (AF) or atrial flutter who were prescribed warfarin OR another FDA- approved anticoagulant drug for the prevention of thromboembolism during the measurement period
80%452 patients3/55-star benchmark: 100%
Care Plan
Percentage of patients aged 65 years and older who have an advance care plan or surrogate decision maker documented in the medical record that an advance care plan was discussed but the patient did not wish or was not able to name a surrogate decision maker…
0%703 patients1/55-star benchmark: 100%
Coronary Artery Disease (CAD): Antiplatelet Therapy
Percentage of patients aged 18 years and older with a diagnosis of coronary artery disease (CAD) seen within a 12 month period who were prescribed aspirin or clopidogrel
82%119 patients3/55-star benchmark: 100%
Diabetes: Medical Attention for Nephropathy
The percentage of patients 18-75 years of age with diabetes who had a nephropathy screening test or evidence of nephropathy during the measurement period
71%83 patients3/55-star benchmark: 100%
Documentation of Current Medications in the Medical Record
Percentage of visits for patients aged 18 years and older for which the eligible professional or eligible clinician attests to documenting a list of current medications using all immediate resources available on the date of the encounter.
100%2,010 patients5/55-star benchmark: 100%
e-Prescribing
At least one permissible prescription written by the MIPS eligible clinician is queried for a drug formulary and transmitted electronically using certified EHR technology.
100%1,526 patients5/55-star benchmark: 100%
Ischemic Vascular Disease (IVD): Use of Aspirin or Another Antiplatelet
Percentage of patients 18 years of age and older who were diagnosed with acute myocardial infarction (AMI), coronary artery bypass graft (CABG) or percutaneous coronary interventions (PCI) in the 12 months prior to the measurement period, or who had an active…
86%59 patients4/55-star benchmark: 100%
Medication Reconciliation
The MIPS eligible clinician performs medication reconciliation for at least one transition of care in which the patient is transitioned into the care of the MIPS eligible clinician.
99%363 patients4/55-star benchmark: 100%
Patient-Specific Education
The MIPS eligible clinician must use clinically relevant information from CEHRT to identify patient-specific educational resources and provide access to those materials to at least one unique patient seen by the MIPS eligible clinician.
67%1,023 patients3/55-star benchmark: 100%
Preventive Care and Screening: Body Mass Index (BMI) Screening and Follow-Up Plan
Percentage of patients aged 18 years and older with a BMI documented during the current encounter or during the previous twelve months AND with a BMI outside of normal parameters, a follow-up plan is documented during the encounter or during the previous…
57%1,021 patients3/55-star benchmark: 100%
Preventive Care and Screening: Tobacco Use: Screening and Cessation Intervention
Percentage of patients aged 18 years and older who were screened for tobacco use one or more times within 24 months AND who received tobacco cessation intervention if identified as a tobacco user
Patients tobacco: 78% · 541 patients
81%541 patients
Provide Patient Access
At least one patient seen by the MIPS eligible clinician during the performance period is provided timely access to view online, download, and transmit to a third party their health information subject to the MIPS eligible clinician's discretion to withhold…
67%1,023 patients3/55-star benchmark: 100%
Secure Messaging
For at least one unique patient seen by the MIPS eligible clinician during the performance period, a secure message was sent using the electronic messaging function of CEHRT to the patient (or the patient-authorized representative), or in response to a secure…
0%1,023 patients1/55-star benchmark: 79%
Use of High-Risk Medications in the Elderly
Percentage of patients 65 years of age and older who were ordered high-risk medications. Two rates are submitted. 1) Percentage of patients who were ordered at least one high-risk medication.
Lower rates are better for this measure.
Patients 2+: 0% · 677 patients
0%677 patients5/55-star benchmark: 100%
Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

Referred Medical Equipment & Supplies CMS DME claims

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Shoulder orthosis, acromio/clavicular (canvas and webbing type), prefabricated, off-the-shelf L3670
DME-Orthotic Devices · category DF000N
1 supplier31 claims31 services$111.59 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Family Medicine
500 DOYLE PARK DR, SUITE G-04
SANTA ROSA, CA 95405
Nurse Practitioner (Family)
500 DOYLE PARK DR, SUITE 103
SANTA ROSA, CA 95405
Family Medicine
500 DOYLE PARK DR, SUITE G04
SANTA ROSA, CA 95405
Internal Medicine (Cardiovascular Disease)
500 DOYLE PARK DR, SUITE G05
SANTA ROSA, CA 95405
Internal Medicine
500 DOYLE PARK DR, SUITE 304
SANTA ROSA, CA 95405
Thoracic Surgery (Cardiothoracic Vascular Surgery)
500 DOYLE PARK DR, SUITE G-05
SANTA ROSA, CA 95405
Internal Medicine
500 DOYLE PARK DR, SUITE 300
SANTA ROSA, CA 95405
Pediatrics
500 DOYLE PARK DR, SUITE 100
SANTA ROSA, CA 95405

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Peter Chang Sing's NPI number?

The NPI number for Peter Chang Sing is 1386678902. It was assigned to this individual provider in the NPPES registry on July 10, 2006. The provider is also known as Peter D. G. Chang Sing M.D..

Where is Peter Chang Sing located?

Peter Chang Sing practices at 500 Doyle Park Dr Suite 302, Santa Rosa, CA 95405. The listed phone number is (707) 573-7070.

What is Peter Chang Sing's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Clinical Cardiac Electrophysiology, with taxonomy code 207RC0001X.

Is Peter Chang Sing enrolled in Medicare?

Yes. Peter Chang Sing is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

When was this NPI record last updated?

The NPPES record for Peter Chang Sing was last updated on December 3, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.