DR. ROBERT T. SPERLING M.D.
NPI 1558351387
Internal Medicine - Interventional Cardiology in Larkspur, CA

Q: What is Robert Sperling's NPI number?

The NPI number for Robert Sperling is 1558351387. It was assigned to this individual provider in the NPPES registry on October 24, 2005.

Q: What is Robert Sperling's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Interventional Cardiology, with taxonomy code 207RI0011X.

Q: When was this NPI record last updated?

The NPPES record for Robert Sperling was last updated on April 9, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.

Active since October 24, 2005PECOS Enrolled

2 BON AIR RD, #100, LARKSPUR, CA 94939(415) 927-0666(415) 927-6168 Get Directions Write a Review

NPPES record last updated: April 9, 2012. Verified against the NPPES registry weekly; last sync: October 18, 2026.

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About Dr. Robert T. Sperling M.d. NPPES

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

DR. ROBERT T. SPERLING M.D. (NPI 1558351387) is an individual interventional cardiology provider in Larkspur, California, licensed in California (A80228) and active in the NPI registry since October 2005. He is enrolled in Medicare PECOS and is a graduate of Duke University School Of Medicine (1995).

NPPES Registry Identity

NPI1558351387

Entity TypeIndividualMale

Primary Taxonomy207RI0011X

Provider Legal NameDR. ROBERT T. SPERLINGCredential: M.D.

Location Address2 BON AIR RD, #100Larkspur, CA 94939-1141

Mailing Address2 Bon Air Rd, #100Larkspur, CA 94939-1141 · (415) 927-0666 · Fax (415) 927-6168

Phone(415) 927-0666

Fax(415) 927-6168

Sole ProprietorNo

Medical School CMSDuke University School Of MedicineGraduated 1995

Enumeration DateOctober 24, 2005

Last NPPES UpdateApril 9, 2012

✔ NPI 1558351387 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Interventional CardiologyAllopathic & Osteopathic Physicians

Taxonomy Code207RI0011X

License✔ Licensed in CA · A80228

Definition

An area of medicine within the subspecialty of cardiology, which uses specialized imaging and other diagnostic techniques to evaluate blood flow and pressure in the coronary arteries and chambers of the heart and uses technical procedures and medications to treat abnormalities that impair the function of the cardiovascular system.

Also ListedInternal Medicine · Cardiovascular DiseaseTaxonomy 207RC0000X · License A80228 (CA)

2 BON AIR RD, Larkspur, CA 94939

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Other Identifiers 1

Medicare UPINH69719CA

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Robert T. Sperling M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID2062557184

PECOS Enrollment IDI20100301000597

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.

Medicare Billing Reassignment

Medicare enrollment records show Robert Sperling reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Regents Univ Of California Ucsf

13 mi

Internal Medicine

505 PARNASSUS AVE
San Francisco, CA 94143

Reassigned Medicare billing, California enrollment
339 clinicians in this Medicare group

NPI 1124439807 (415) 476-1000

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 31

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.

1,130 services696 patients

Anticoagulant management of patient taking warfarin 93793

Anticoagulant management with warfarin involves monitoring and adjusting your medication to prevent blood clots while minimizing the risk of bleeding. Regular blood tests measure your response to warfarin, helping adjust your dose if necessary. It's crucial to maintain a consistent diet and promptly report any changes in your health.

415 services15 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.

239 services215 patients

Outpatient heart rehabilitation with electrocardiogram (ecg) monitoring, quality health care professional services 93798

Outpatient heart rehabilitation involves regular visits to a clinic for heart health improvement after a cardiac event. During these sessions, an electrocardiogram (ECG) monitors heart activity, while healthcare professionals provide personalized care and education on lifestyle changes, ensuring a safe recovery and reducing future heart risks.

220 services103 patients

Insertion of tube in left lower heart chamber and coronary artery for diagnosis with review by radiologist 93458

This procedure involves placing a tube into your left lower heart chamber and coronary artery. It helps doctors diagnose heart conditions by allowing them to view these areas in detail. A radiologist will review the images to ensure accurate diagnosis.

87 services85 patients

Online digital evaluation and management service for an established patient for up to 7 days, total time 5-10 minutes 99421

This service involves a week-long digital assessment of your health status. It's conducted online by your healthcare provider, focusing on managing your existing health condition. The process takes 5-10 minutes of your time daily, ensuring optimal health management.

84 services70 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.

70 services68 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.

63 services52 patients

Ultrasound of heart blood flow, valves and chambers 93320

An ultrasound of your heart, also known as an echocardiogram, is a test that uses sound waves to create detailed images of your heart. It helps doctors check the health of your heart's chambers, valves, and blood flow.

60 services60 patients

Ultrasound of heart with color-depicted blood flow, rate and valve function 93325

An ultrasound of the heart, also known as an echocardiogram, uses sound waves to create pictures of your heart. It shows the structure, movement, and blood flow within your heart. This helps assess the heart's health and function, including the valves and rate.

60 services60 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.

60 services57 patients

Ultrasound of heart with continuous electrocardiogram (ecg) during rest, exercise and/or drug induced stress with review and report 93351

This procedure involves using ultrasound technology to create images of your heart while you rest, exercise, or undergo drug-induced stress. An ECG continuously monitors your heart's electrical activity. It helps doctors assess heart health and function.

59 services59 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.

54 services53 patients

Insertion of stents with balloon dilation of coronary artery or branch, single artery or branch 92928

This procedure involves placing a small, mesh tube (stent) in your coronary artery to keep it open. A balloon is used to expand the stent and artery, improving blood flow to your heart. It's typically done for a single artery or branch.

51 services43 patients

Insertion of tube in right and left heart chambers and coronary artery for diagnosis with review by radiologist 93460

This procedure involves placing a tube into the heart chambers and coronary artery. It helps diagnose heart conditions. A radiologist reviews the images obtained. It's a standard, safe procedure performed by experienced medical professionals.

42 services41 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.

41 services41 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.

40 services40 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

39 services38 patients

Telephone medical discussion with physician, 11-20 minutes 99442

This is a service where you have a phone conversation with your doctor for 11-20 minutes. It's used for discussing health concerns, reviewing test results, or managing ongoing conditions. It's a convenient way to receive medical advice without an in-person visit.

33 services31 patients

Transitional care management services for problem of at least moderate complexity 99495

Transitional care management services focus on coordinating and managing your care after you leave the hospital. For moderate complexity problems, this involves managing your medications, arranging further treatments, and ensuring you have the necessary follow-ups.

27 services27 patients

Heart rhythm review, and interpretation of continous external ekg over more than 48 hours up to 7 days 93244

A heart rhythm review involves monitoring your heart's electrical activity for more than 48 hours up to 7 days. Using a device called an external EKG, doctors can track your heartbeats to detect irregularities and help diagnose heart conditions.

25 services24 patients

Insertion of tube in coronary artery for diagnosis with review by radiologist 93454

This procedure involves placing a small tube into your coronary artery. It helps to identify any blockages or issues within the artery. A radiologist, a doctor specialized in medical imaging, will review the results to ensure accurate diagnosis.

24 services24 patients

Telephone medical discussion with physician, 5-10 minutes 99441

A telephone medical discussion with a physician is a brief, 5-10 minute call where you can discuss your health concerns. It's a convenient way to receive medical advice without needing to visit a clinic. It's important to prepare questions in advance to make the most of this time.

20 services20 patients

Ultrasound evaluation of heart blood vessel during diagnosis or treatment, initial vessel 93571

This procedure involves using ultrasound technology to examine the first blood vessel of your heart. It helps identify any abnormalities or issues, providing crucial information for diagnosis or treatment. It's a safe, non-invasive process.

19 services19 patients

Transitional care management services for problem of high complexity 99496

Transitional care management services are designed to ensure a smooth transition from a hospital to home or another care setting for patients with complex health issues. These services include medication management, patient education, and coordination with healthcare providers.

19 services16 patients

Heart rhythm recording continous external ekg over more than 48 hours up to 7 days 93242

This procedure involves wearing a device, an external EKG, for up to 7 days to continuously monitor your heart rhythm. It helps detect irregularities that may not occur during a standard EKG. The device is non-invasive and safe.

16 services15 patients

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

14 services14 patients

Critical care, first 30-74 minutes 99291

Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.

13 services13 patients

Ultrasound evaluation of heart blood vessel or graft with review by radiologist, initial vessel 92978

This procedure involves using ultrasound technology to examine the first vessel of your heart or graft. A radiologist will review the images. It's a non-invasive way to check the health of your heart's blood vessels.

12 services12 patients

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

12 services12 patients

Online digital evaluation and management service for an established patient for up to 7 days, total time 11-20 minutes 99422

This is a digital health service for existing patients. Over a week, your healthcare provider will assess and manage your health concerns online. The total time spent communicating will be between 11-20 minutes. This service offers convenience and continuous care.

12 services11 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94939 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

$154.04 typical visit price

range $69.07 – $202.63

Typical copayment $38.51 (range $17.26 – $50.65)

Most-billed visit code 99204

Established Patient

$119.61 typical visit price

range $23.44 – $166.64

Typical copayment $29.90 (range $5.86 – $41.66)

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.

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.

DR. SUJOYA DEY MD

Internal Medicine (Clinical Cardiac Electrophysiology)

2 BON AIR RD, SUITE 100
LARKSPUR, CA 94939

Marin County (415) 927-0666

CHRIS KANE

Physical Therapist (Orthopedic)

2 BON AIR RD
LARKSPUR, CA 94939

Marin County (415) 924-8900

DONALD L LAZZARETTO PHARM D

Pharmacist

2 BON AIR RD, SUITE 130
LARKSPUR, CA 94939

Marin County (415) 924-2454

NANCY SCHILL BLOOM R.D.

Dietitian, Registered

2 BON AIR RD, SUITE 100
LARKSPUR, CA 94939

Marin County (415) 927-0666

DR. MARK P. WEXMAN M.D.

Internal Medicine (Cardiovascular Disease)

2 BON AIR RD
LARKSPUR, CA 94939

Marin County (415) 927-0666

DR. BRIAN SU MD

Orthopaedic Surgery (Orthopaedic Surgery of the Spine)

2 BON AIR RD, SUITE 120
LARKSPUR, CA 94939

Marin County (415) 925-8200

LISA V. ELVIN NP

Nurse Practitioner

2 BON AIR RD, SUITE 120
LARKSPUR, CA 94939

Marin County (415) 927-5300

MS. KIMBERLY HOAGLAND MADSEN RD

Dietitian, Registered

2 BON AIR RD, SUITE 130
LARKSPUR, CA 94939

Marin County (415) 924-2438

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 Robert Sperling's NPI number?

The NPI number for Robert Sperling is 1558351387. It was assigned to this individual provider in the NPPES registry on October 24, 2005.

Where is Robert Sperling located?

Robert Sperling practices at 2 Bon Air Rd #100, Larkspur, CA 94939. The listed phone number is (415) 927-0666.

What is Robert Sperling's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Interventional Cardiology, with taxonomy code 207RI0011X.

Is Robert Sperling enrolled in Medicare?

Yes. Robert Sperling is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Robert Sperling's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Robert Sperling reassigns Medicare benefits to Regents Univ Of California Ucsf (San Francisco, CA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Robert Sperling's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Robert Sperling was last updated on April 9, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.