Katherine Dittmann, MS, RD
Registered Dietitian · San Francisco, CA
Katherine Dittmann, MS, RD is a registered dietitian with a practice address in San Francisco, California, and NPI 1275086159, issued on Jul 27, 2016. Check the license (California 1020745, as entered in NPPES) with the California board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Katherine Dittmann
- Credential
- MS, RD
- Primary taxonomy
- Registered Dietitian 133V00000X
- License number
- 1020745 CA
Self-reported in NPPES; status is on the state search - Practice location
- 3107 Fillmore St Ste 302, San Francisco, CA 94123
- Phone
- (415) 515-4511
- Enumerated
- Jul 27, 2016
- Record last updated
- Jul 27, 2016 (not updated in 10 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest registered dietitian records → All 7,148 in California → Look up another NPI →
Also registered at 3107 Fillmore St Ste 302
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Elana Vitek, LMFTMarriage & Family Therapist1295674695
Verify Katherine Dittmann in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 1020745Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Katherine Dittmann among 7,148 registered dietitian records in California
Katherine Dittmann, MS, RD is one of 7,148 registered dietitian records with a practice address in California. 5% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2016, is newer than 38% of them.
- NPI issued2016 · 38% of these records are older, 58% newer
- In a Medicare fileNo · 5% of these records are
- In the CMS Doctors and Clinicians fileNo · 7% of these records are
- Record last updated2016 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 133V00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Registered Dietitian providers in California
There are 7,148 registered dietitian records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 7,148 in California → Every provider in San Francisco → Registered Dietitian nationwide →
The 8 registered dietitian records with the nearest ZIP codes
- Sarah Firebaugh, RDNSan Francisco, CA 941231205649373
- Kelsey Gonzalez, RDNSan Francisco, CA 941231821460775
- Emily HickeySan Francisco, CA 941231699646398
- Rosa Keller, PH.D., R.D.San Francisco, CA 941231720704810
- Nicole Klawitter, RDSan Francisco, CA 941231013470053
- Christina Lazzaretto, RDSan Francisco, CA 941231407977994
- Kasey Cacace, RDNSan Francisco, CA 941241699652172
- Bonnie Cheng, RDSan Francisco, CA 941221902191109
Common questions
What is Katherine Dittmann, MS, RD's NPI number?
Katherine Dittmann, MS, RD's National Provider Identifier (NPI) is 1275086159, issued on Jul 27, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Katherine Dittmann, MS, RD located?
The NPPES record lists a practice address at 3107 Fillmore St Ste 302, San Francisco, CA, 94123. Phone: (415) 515-4511. Providers update this record themselves, so call before visiting.
How can I verify Katherine Dittmann, MS, RD's license?
NPPES lists California license number 1020745, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity 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. 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.