Carolyn Tiernan, MD
Emergency Medicine Physician · Oakland, CA
Carolyn Tiernan, MD is an emergency medicine physician with a practice address in Oakland, California, and NPI 1215947981, issued on Aug 8, 2006. Check the license (California G40571, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Carolyn Tiernan
- Credential
- MD
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- G40571 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2107 Livingston St, Oakland, CA 94606
- Phone
- (510) 436-9000
- Enumerated
- Aug 8, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (510) 436-9013
- Medicare enrollment
- Enrolled (PECOS I20081220000150); accepts Medicare assignment
- Medical or professional school
- Stanford University School Of Medicine, 1978
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 7,751 in California → Look up another NPI →
Also registered at 2107 Livingston St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- James Davey, M.D.Emergency Medicine Physician1558375774
- Michael Dillon, M.D.Emergency Medicine Physician1063436111
- Raymond Lorenzato, M.D.Emergency Medicine Physician1851315865
- Kenneth Moses, MDEmergency Medicine Physician1275543845
- Jeremy Orvik, MDEmergency Medicine Physician1972628477
Verify Carolyn Tiernan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G40571Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $22.29
1 payment: food and beverage; the largest payer was Mimedx Group, Inc. The 12,335 providers of this specialty with any payment received $953.79 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
- Northern Inyo Healthcare DistrictBishop, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Carolyn Tiernan among 7,751 emergency medicine physician records in California
Carolyn Tiernan, MD is one of 7,751 emergency medicine 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 2006, is newer than 4% of them.
- NPI issued2006 · 4% of these records are older, 60% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated1978 · median 2011 among the 4,560 with a school on file
- Record last updated2007 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
247 emergency medicine physician records list a practice address in Oakland
They are 247 of the 18,558 NPPES records with a practice address in Oakland, and 7,751 emergency medicine physician records in California.
All 7,751 in California → Every provider in Oakland → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Helena Black, MDOakland, CA 946061013931104
- James Davey, M.D.Oakland, CA 946061558375774
- Michael Dillon, M.D.Oakland, CA 946061063436111
- Eric Jamison, M.D.Oakland, CA 946061740294388
- Scott Landeck, MDOakland, CA 946061790733269
- Raymond Lorenzato, M.D.Oakland, CA 946061851315865
- Kenneth Moses, MDOakland, CA 946061275543845
- Michael Phillips, MDOakland, CA 946061013927771
Common questions
What is Carolyn Tiernan, MD's NPI number?
Carolyn Tiernan, MD's National Provider Identifier (NPI) is 1215947981, issued on Aug 8, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Carolyn Tiernan, MD located?
The NPPES record lists a practice address at 2107 Livingston St, Oakland, CA, 94606. Phone: (510) 436-9000. Providers update this record themselves, so call before visiting.
How can I verify Carolyn Tiernan, MD's license?
NPPES lists California license number G40571, 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.
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.