Crystal Williams Mattimore, M.D.
Internal Medicine Physician · Topanga, CA
Crystal Williams Mattimore, M.D. is an internal medicine physician with a practice address in Topanga, California, and NPI 1114943842, issued on Jul 14, 2006. Check the license (California C40029, as entered in NPPES) on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Crystal Williams Mattimore
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- C40029 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2417 Topanga Skyline Dr, Topanga, CA 90290
- Phone
- (310) 455-1536
- Enumerated
- Jul 14, 2006
- Record last updated
- Jan 7, 2010 (not updated in 16 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
Verify Crystal Williams Mattimore in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license C40029Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3 internal medicine physician records list a practice address in Topanga
They are 3 of the 56 NPPES records with a practice address in Topanga, and 17,696 internal medicine physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 3 in Topanga → All 17,696 in California → Every provider in Topanga →
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- Luba Abascal, MDSan Francisco, CA1023180874
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Common questions
What is Crystal Williams Mattimore, M.D.'s NPI number?
Crystal Williams Mattimore, M.D.'s National Provider Identifier (NPI) is 1114943842, issued on Jul 14, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Crystal Williams Mattimore, M.D. located?
The NPPES record lists a practice address at 2417 Topanga Skyline Dr, Topanga, CA, 90290. Phone: (310) 455-1536. Providers update this record themselves, so call before visiting.
How can I verify Crystal Williams Mattimore, M.D.'s license?
NPPES lists California license number C40029, 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. 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.