Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Dr. Robert T. Sperling, MD

Individual provider Cardiovascular Disease Physician · NPI 1558351387

Dr. Robert T. Sperling, MD practises Interventional Cardiology in Larkspur, California. Graduated from Duke University School of Medicine in 1995, 31 years ago. Practices with Regents Univ of California UCSF, a 272-clinician group and offers telehealth. Licensed in California.

Years since qualifying
31
Trained at
Duke University School of Medicine
Licensed in
CA
In the registry since
2005
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

2 Bon Air Rd #100
Larkspur, CA 94939-1141 Not confirmed with CMS for 14 years — call before visiting
Phone: (415) 927-0666
Fax: (415) 927-6168
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Interventional Cardiology Physician (primary) Taxonomy 207RI0011X · Licence A80228 (CA)
Cardiovascular Disease Physician Taxonomy 207RC0000X · Licence A80228 (CA)

Record details

NPI number1558351387
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedOctober 24, 2005
Last updated in NPPESApril 9, 2012

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyINTERVENTIONAL CARDIOLOGY
Also practisesCARDIOVASCULAR DISEASE (CARDIOLOGY)
Medical schoolDUKE UNIVERSITY SCHOOL OF MEDICINE
Graduated 1995 (31 years in practice)
Group practice Regents Univ Of California Ucsf — 272 clinicians
Accepts Medicare assignment Not indicated
TelehealthOffers telehealth services

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

Coronary angioplasty and stenting 61 times · 88th percentile

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients1,109
Services billed 4,109 a service is one billed item, such as a visit, a test or a procedure
Average patient age78

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $408 6 payments · a meal or drink at a meeting or visit, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

  • Marinhealth Medical Center Hospital · Greenbrae, CA
  • Novato Community Hospital Hospital · Novato, CA
  • Sonoma Valley Hospital Hospital · Sonoma, CA

Colleagues at Regents Univ of California UCSF

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 272 clinicians in the practice; 12 are shown here.

Other providers in Larkspur