Diana Tobler
Cardiovascular Disease Physician · Larkspur, CA
Diana Tobler is a cardiovascular disease physician with a practice address in Larkspur, California, and NPI 1831523836, issued on Aug 26, 2013. Check the license (California A154056, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Diana Tobler
- Primary taxonomy
- Cardiovascular Disease Physician 207RC0000X
- License number
- A154056 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2 Bon Air RD Ste 100, Larkspur, CA 94939
- Phone
- (415) 927-0666
- Enumerated
- Aug 26, 2013
- Record last updated
- Sep 20, 2024
- Fax
- (415) 927-6168
- Medicare enrollment
- Enrolled (PECOS I20190718001582); may accept Medicare assignment
- Medical or professional school
- Oregon Health Sciences University School Of Medicine, 2016
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest cardiovascular disease physician records → All 2,574 in California → Look up another NPI →
Also registered at 2 Bon Air RD Ste 100
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Benedict Ancock, M.D.Cardiovascular Disease Physician1578847844
- Mallette Asmuth, MDCardiovascular Disease Physician1023515988
- Anshul BadhwarCardiovascular Disease Physician1710365614
- Amy Gin, M.D.Interventional Cardiology Physician1598080442
- Jennifer Greenway, NPNurse Practitioner1578021960
- Xiaojing HePhysician Assistant1144677956
Verify Diana Tobler in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A154056Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
84% fewer Medicare Part D claims than the average cardiovascular disease physician in 2024
493 Medicare Part D claims for 122 beneficiaries, against an average of 3,078 among the 20,728 providers of this specialty who prescribed in Part D. Brand-name drugs were 17% of claims.
Most prescribed
- Losartan Potassium40 claims
- Spironolactone35 claims
- Furosemide34 claims
- Amlodipine Besylate33 claims
- Atorvastatin Calcium32 claims
- Metoprolol Succinate30 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: $262.74
3 payments; by number, the most common kind was food and beverage; the largest payer was Heartflow, Inc. The 16,686 providers of this specialty with any payment received $3,819.56 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
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
- Regents Univ OF California UcsfSan Francisco, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Diana Tobler among 2,574 cardiovascular disease physician records in California
Diana Tobler is one of 2,574 cardiovascular disease physician records with a practice address in California. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 82% of them.
- NPI issued2013 · 82% of these records are older, 16% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated2016 · median 1999 among the 1,742 with a school on file
- Record last updated2024 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
21 cardiovascular disease physician records list a practice address in Larkspur
They are 21 of the 291 NPPES records with a practice address in Larkspur, and 2,574 cardiovascular disease physician records in California.
All 2,574 in California → Every provider in Larkspur → Cardiovascular Disease Physician nationwide →
The 8 cardiovascular disease physician records with the nearest ZIP codes
- James Adams, M.D.Larkspur, CA 949391578553277
- Margaret Baer, M.D.Larkspur, CA 949391104816917
- Adam Baumgarten, MDLarkspur, CA 949391366570707
- Kent Gershengorn, M.D.Larkspur, CA 949391811987621
- Ann Kao, M.D.Larkspur, CA 949391336130145
- Brian Keeffe, M.D.Larkspur, CA 949391689664492
- Sahar Naderi, M.D.Larkspur, CA 949391013183334
- Kabir Singh, M.D.Larkspur, CA 949391629233051
Common questions
What is Diana Tobler's NPI number?
Diana Tobler's National Provider Identifier (NPI) is 1831523836, issued on Aug 26, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Diana Tobler located?
The NPPES record lists a practice address at 2 Bon Air RD Ste 100, Larkspur, CA, 94939. Phone: (415) 927-0666. Providers update this record themselves, so call before visiting.
How can I verify Diana Tobler's license?
NPPES lists California license number A154056, 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 Diana Tobler prescribe under Medicare Part D?
In 2024, Diana Tobler had 493 Medicare Part D claims for 122 beneficiaries; the average among cardiovascular disease physician prescribers was 3,078. 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.