Franciscus Delen, MD
Pulmonary Disease Physician · San Francisco, CA
Franciscus Delen, MD is a pulmonary disease physician with a practice address in San Francisco, California, and NPI 1770563041, issued on Jan 20, 2006. Check the license (California 162151, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Franciscus Delen
- Credential
- MD
- Primary taxonomy
- Pulmonary Disease Physician 207RP1001X
- License number
- 162151 CA
Self-reported in NPPES; status is on the state search - Practice location
- 45 Castro St, San Francisco, CA 94114
- Phone
- (415) 252-1090
- Enumerated
- Jan 20, 2006
- Entity
- Type 1 · individual
Also registered at 45 Castro St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Franciscus Delen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 162151Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
99% fewer Medicare Part D claims than the average pulmonary disease physician in 2024
21 Medicare Part D claims, against an average of 1,498 among the 6,594 providers of this specialty who prescribed in Part D.
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.
One hospital or facility affiliation
- Sutter Bay Medical FoundationSan Francisco, CA
Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Pulmonary Disease Physician providers in California
There are 905 pulmonary disease physician records in California.
Other pulmonary disease physician records in California
- Manoochehr Abadian Sharifabad, M.D.Fountain Valley, CA1164655817
- Mohamad Abdelfattah, MDFullerton, CA1134539711
- Zainab Abdulsada, MBCHBSacramento, CA1144858333
- Ayham Aboeed, M.D.Bakersfield, CA1093969750
- Babak Abrishami, D.O.Los Angeles, CA1972553576
- Thomas Addison, MDSan Francisco, CA1154494599
- Leonard Adelson, MDSherman Oaks, CA1235152455
- Yossef Aelony, MDHarbor City, CA1619178597
- Kamyar Afshar, D.O.San Diego, CA1407050669
- Muhammad Afzal, M.D.Sacramento, CA1689600553
Common questions
What is Franciscus Delen, MD's NPI number?
Franciscus Delen, MD's National Provider Identifier (NPI) is 1770563041, issued on Jan 20, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Franciscus Delen, MD located?
The NPPES record lists a practice address at 45 Castro St, San Francisco, CA, 94114. Phone: (415) 252-1090. Providers update this record themselves, so call before visiting.
How can I verify Franciscus Delen, MD's license?
NPPES lists California license number 162151, 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 Franciscus Delen, MD prescribe under Medicare Part D?
In 2024, Franciscus Delen, MD had 21 Medicare Part D claims; the average among pulmonary disease physician prescribers was 1,498. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.