Erin K. Hammett, DO.
Rheumatology Physician · Santa Barbara, CA
Erin K. Hammett, DO. is a rheumatology physician with a practice address in Santa Barbara, California, and NPI 1467884098, issued on Aug 6, 2013. Check the license (California 20A14025, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Erin K. Hammett
- Credential
- DO.
- Primary taxonomy
- Rheumatology Physician 207RR0500X
- License number
- 20A14025 CA
Self-reported in NPPES; status is on the state search - Practice location
- 317 W Pueblo St, Santa Barbara, CA 93105
- Phone
- (805) 898-3077
- Enumerated
- Aug 6, 2013
- Record last updated
- Aug 15, 2023
- Fax
- (805) 898-3058
- Medicare enrollment
- Enrolled (PECOS I20161103002131); accepts Medicare assignment
- Medical or professional school
- Lake Erie College Of Osteopathic Medicine, Erie, 2016
- Entity
- Type 1 · individual
8 nearest rheumatology physician records → All 926 in California → Look up another NPI →
Also registered at 317 W Pueblo St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Justin Abraham, M.D., M.B.A.Neurology Physician1225322522
- Hosam Ahmad, M.D.Hospitalist Physician1881846475
- Joseph Aragon, M.D.Interventional Cardiology Physician1023122587
- Hiwot ArayaHospitalist Physician1922427327
- Christina Archer, MS, RDRegistered Dietitian1487178380
- Summer Baird, M.D.Internal Medicine Physician1245727809
Verify Erin K. Hammett in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A14025Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
60% fewer Medicare Part D claims than the average rheumatology physician in 2024
794 Medicare Part D claims for 183 beneficiaries, against an average of 1,978 among the 6,301 providers of this specialty who prescribed in Part D. 47 claims were for opioids.
Most prescribed
- Prednisone133 claims
- Hydroxychloroquine Sulfate71 claims
- Methotrexate64 claims
- Allopurinol62 claims
- Duloxetine Hcl44 claims
- Tramadol Hcl35 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: $810.98
33 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 4,486 providers of this specialty with any payment received $8,538.33 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 2 group practices
- Sansum ClinicSanta Barbara, CA
- Southern Mono Health Care DistrictMammoth Lakes, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Erin K. Hammett among 926 rheumatology physician records in California
Erin K. Hammett, DO. is one of 926 rheumatology physician records with a practice address in California. 81% 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 75% of them.
- NPI issued2013 · 75% of these records are older, 21% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated2016 · median 2003 among the 641 with a school on file
- Record last updated2023 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RR0500X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Rheumatology Physician providers in California
There are 926 rheumatology physician records in California.
All 926 in California → Every provider in Santa Barbara → Rheumatology Physician nationwide →
The 8 rheumatology physician records with the nearest ZIP codes
- Robert Klein, M.D.Santa Barbara, CA 931051205004900
- Wonuk Lee, M.D.Santa Barbara, CA 931051386720092
- Courtney Stull, M.D.Santa Barbara, CA 931051376905836
- Hans Richard Barthel, M.D.Santa Barbara, CA 931081003827999
- Kathleen Kolstad, MDMontecito, CA 931081902240203
- Timothy Spiegel, M.D.Santa Barbara, CA 931011700870243
- Suzanne Delea, MDSanta Barbara, CA 931101841339868
- Daniel Gibson, M.D.Santa Barbara, CA 931101710999602
Common questions
What is Erin K. Hammett, DO.'s NPI number?
Erin K. Hammett, DO.'s National Provider Identifier (NPI) is 1467884098, issued on Aug 6, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Erin K. Hammett, DO. located?
The NPPES record lists a practice address at 317 W Pueblo St, Santa Barbara, CA, 93105. Phone: (805) 898-3077. Providers update this record themselves, so call before visiting.
How can I verify Erin K. Hammett, DO.'s license?
NPPES lists California license number 20A14025, 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 Erin K. Hammett, DO. prescribe under Medicare Part D?
In 2024, Erin K. Hammett, DO. had 794 Medicare Part D claims for 183 beneficiaries; the average among rheumatology physician prescribers was 1,978. 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.