DUANE D. STEPHENS M.D.
NPI 1972526044
Internal Medicine - Cardiovascular Disease in Oakland, CA

Q: What is Duane Stephens's NPI number?

The NPI number for Duane Stephens is 1972526044. It was assigned to this individual provider in the NPPES registry on July 26, 2006.

Q: What is Duane Stephens's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.

Q: When was this NPI record last updated?

The NPPES record for Duane Stephens was last updated on June 25, 2025. NPI Profile syncs with the weekly NPPES data releases published by CMS.

Active since July 26, 2006PECOS EnrolledAccepts Medicare Assignment

82.39/100

CMS Quality Rating

3300 WEBSTER ST, SUITE 404-410, OAKLAND, CA 94609(510) 549-4220(510) 433-0744 Get Directions Write a Review

NPPES record last updated: June 25, 2025. Verified against the NPPES registry weekly; last sync: July 26, 2026.

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About Duane D. Stephens M.d. NPPES

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

DUANE D. STEPHENS M.D. (NPI 1972526044) is an individual cardiovascular disease provider in Oakland, California, licensed in California (G31064) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS, maintains a secondary practice location in Berkeley, and is a graduate of University Of California, Geffen School Of Medicine (1974).

NPPES Registry Identity

NPI1972526044

Entity TypeIndividualMale

Primary Taxonomy207RC0000X

Provider Legal NameDUANE D. STEPHENSCredential: M.D.

Location Address3300 WEBSTER ST, SUITE 404-410Oakland, CA 94609-3117

Mailing Address3300 Webster St, Suite 404-410Oakland, CA 94609-3117 · (510) 549-4220 · Fax (510) 433-0744

Phone(510) 549-4220

Fax(510) 433-0744

Sole ProprietorNo

Medical School CMSUniversity Of California, Geffen School Of MedicineGraduated 1974

Enumeration DateJuly 26, 2006

Last NPPES UpdateJune 25, 2025

NPPES CertifiedJune 25, 2025

✔ NPI 1972526044 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Cardiovascular DiseaseAllopathic & Osteopathic Physicians

Taxonomy Code207RC0000X

License✔ Licensed in CA · G31064

Definition

An internist who specializes in diseases of the heart and blood vessels and manages complex cardiac conditions such as heart attacks and life-threatening, abnormal heartbeat rhythms.

Also ListedInternal Medicine · Interventional CardiologyTaxonomy 207RI0011X · License G31064 (CA)

3300 WEBSTER ST, Oakland, CA 94609

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Secondary Practice Location 1

Location 12450 Ashby AveBerkeley, CA 94705-2067 · Phone (510) 204-4444

Other Identifiers 1

Medicaid00G310640CA

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

Duane D. Stephens 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 ID9537066162

PECOS Enrollment IDI20040504000712

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 17

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.

226 services127 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.

161 services125 patients

Ultrasound of heart with color-depicted blood flow, rate, direction and valve function 93306

This is a heart ultrasound, also known as an echocardiogram. It uses sound waves to create pictures of your heart, showing how blood flows through it. The color depicts the blood flow's speed and direction. It also checks the heart's valves to ensure they're working properly.

136 services133 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232

Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.

125 services54 patients

Ultrasound of heart with color-depicted blood flow, rate, direction and valve function 93306

73 services72 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

63 services46 patients

Exercise or drug-induced heart stress test with electrocardiogram (ecg) with supervision by physician 93016

An exercise or drug-induced heart stress test with ECG involves monitoring your heart's activity while it's under stress, either from exercise or medication. A doctor supervises the entire procedure to ensure safety and accuracy in results. This test helps detect heart problems.

50 services49 patients

Exercise or drug-induced heart stress test with electrocardiogram (ecg) with review by physician 93018

An exercise or drug-induced heart stress test with ECG is a procedure to assess how your heart functions under stress. It can involve exercising or medication to make your heart work harder while an ECG records its activity. A physician reviews the results.

50 services49 patients

Ultrasound of both sides of head and neck blood flow 93880

An ultrasound of the head and neck blood flow is a safe, non-invasive procedure that uses sound waves to create images of blood vessels. It helps detect abnormalities like blockages or clots, ensuring optimal blood flow.

39 services39 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

34 services30 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233

Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.

31 services16 patients

Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222

Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.

27 services26 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.

17 services17 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

14 services14 patients

Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223

Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.

14 services14 patients

Ultrasound of heart during rest, exercise and/or drug-induced stress with report 93350

This procedure involves using ultrasound imaging to view your heart at rest, during exercise, and/or under drug-induced stress. It helps assess how well your heart responds to exertion. A report of the findings is provided after the test.

12 services12 patients

Brief communication technology-based service, e.g. virtual check-in, by a physician or other qualified health care professional who can report evaluation and management services, provided to an established patient, not originating from a related e/m servic G2012

A virtual check-in is a short online or phone consultation with your healthcare provider. It's for established patients and isn't related to a recent appointment. It's a convenient way to discuss health concerns without needing to visit the office in person.

12 services12 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94609 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

$153.83 typical visit price

range $69.00 – $202.35

Typical copayment $38.45 (range $17.25 – $50.58)

Most-billed visit code 99204

Established Patient

$84.91 typical visit price

range $23.44 – $166.46

Typical copayment $21.22 (range $5.86 – $41.61)

Most-billed visit code 99213

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.

82.39/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored as part of a group practice

Quality

63.02

Improvement Activities

Cost

64.31

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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.

EAST BAY WOMEN'S HEALTH, INC

Obstetrics & Gynecology

3300 WEBSTER ST, SUITE 1200
OAKLAND, CA 94609

Alameda County (510) 653-0846

DR. JAMES K. MOONEY M.D.

Specialist

3300 WEBSTER ST, STE 710
OAKLAND, CA 94609

Alameda County (510) 465-5800

DR. JAMES BRUCE FLOREY M.D.

Pediatrics

3300 WEBSTER ST, SUITE 1202
OAKLAND, CA 94609

Alameda County (510) 433-1040

DR. ROBERT ANSEL M.D.

Neuromusculoskeletal Medicine & OMM

3300 WEBSTER ST, 1105
OAKLAND, CA 94609

Alameda County (510) 763-0217

AMOREENA BERG MFT

Marriage & Family Therapist

3300 WEBSTER ST, SUITE 408
OAKLAND, CA 94609

Alameda County (510) 444-2772

DR. VANESSA S CHAN M.D.

Obstetrics & Gynecology

3300 WEBSTER ST, SUITE 1200
OAKLAND, CA 94609

Alameda County (510) 653-0846

COLLIN A MBANUGO M.D.

Surgery

3300 WEBSTER ST, SUITE 900
OAKLAND, CA 94609

Alameda County (510) 272-9610

DENTAL CENTER IMAGING

Radiologic Technologist

3300 WEBSTER ST, SUITE #904
OAKLAND, CA 94609

Alameda County (510) 893-8027

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 Duane Stephens's NPI number?

The NPI number for Duane Stephens is 1972526044. It was assigned to this individual provider in the NPPES registry on July 26, 2006.

Where is Duane Stephens located?

Duane Stephens practices at 3300 Webster St Suite 404-410, Oakland, CA 94609. The listed phone number is (510) 549-4220.

What is Duane Stephens's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.

Is Duane Stephens enrolled in Medicare?

Yes. Duane Stephens 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 Duane Stephens was last updated on June 25, 2025. NPI Profile syncs with the weekly NPPES data releases published by CMS.