NPPES file of Aug 9, 2026

Robert Nelson Cann, M.D.

Internal Medicine Physician · Pasadena, CA

Robert Nelson Cann, M.D. is an internal medicine physician with a practice address in Pasadena, California, and NPI 1205939659, issued on Sep 7, 2006. Check the license (California G45579, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1205939659
Name
Robert Nelson Cann
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
G45579 CA
Self-reported in NPPES; status is on the state search
Practice location
1070 E Green St, Pasadena, CA 91106
Phone
(626) 568-8184
Enumerated
Sep 7, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(626) 405-0641
Medicaid ID
00G455790 CA
Medicare enrollment
Enrolled (PECOS I20120410000678); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
Download card Updates feed

Also registered at 1070 E Green St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Almira Cann, MDSpecialist1699748392

Verify Robert Nelson Cann in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G45579
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Is this page about you? You can ask us to correct, restrict or remove it: how.

62% fewer Medicare Part D claims than the average internal medicine physician in 2024

1,203 Medicare Part D claims for 111 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.

  1. Robert Cann1,203
  2. Specialty average3,176

Most prescribed

  1. Amlodipine Besylate104 claims
  2. Atorvastatin Calcium93 claims
  3. Losartan Potassium66 claims
  4. Metformin Hcl Er51 claims
  5. Levothyroxine Sodium46 claims
  6. Januvia44 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.

Robert Nelson Cann among 17,696 internal medicine physician records in California

Robert Nelson Cann, M.D. is one of 17,696 internal medicine physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 5% of them.

  • NPI issued2006 · 5% of these records are older, 56% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 63% of these records are
  • Graduated1988 · median 2004 among the 11,065 with a school on file
  • Record last updated2007 · 61% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

137 internal medicine physician records list a practice address in Pasadena

They are 137 of the 10,525 NPPES records with a practice address in Pasadena, and 17,696 internal medicine physician records in California.

The 8 internal medicine physician records with the nearest ZIP codes

  1. George Abrahamian, M.D.Pasadena, CA 911061568812196
  2. Cindy Carson, MDPasadena, CA 911061891982633
  3. Irina Jasper, MDPasadena, CA 911061356421903
  4. Anthony Koerner, M.D.Pasadena, CA 911061487620357
  5. Marilynn Moore, MDPasadena, CA 911061306824545
  6. Gregor Paronian, M.D.Pasadena, CA 911061366627945
  7. Thirumala Raju, MDPasadena, CA 911061447346002
  8. Sahniah Siciarz-Lambert, M.D.Pasadena, CA 911061215268917

Common questions

What is Robert Nelson Cann, M.D.'s NPI number?

Robert Nelson Cann, M.D.'s National Provider Identifier (NPI) is 1205939659, issued on Sep 7, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Robert Nelson Cann, M.D. located?

The NPPES record lists a practice address at 1070 E Green St, Pasadena, CA, 91106. Phone: (626) 568-8184. Providers update this record themselves, so call before visiting.

How can I verify Robert Nelson Cann, M.D.'s license?

NPPES lists California license number G45579, 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 Robert Nelson Cann, M.D. prescribe under Medicare Part D?

In 2024, Robert Nelson Cann, M.D. had 1,203 Medicare Part D claims for 111 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.