Karen Ann Littmann-Davis, P.A.C.
Medical Physician Assistant · Valencia, CA
Karen Ann Littmann-Davis, P.A.C. is a medical physician assistant with a practice address in Valencia, California, and NPI 1609898998, issued on Jul 24, 2006. Check the license (California PA12439, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Karen Ann Littmann-Davis
- Credential
- P.A.C.
- Primary taxonomy
- Medical Physician Assistant 363AM0700X
- License number
- PA12439 CA
Self-reported in NPPES; status is on the state search - Practice location
- 25775 Mcbean Pkwy, Valencia, CA 91355
- Phone
- (661) 753-5464
- Enumerated
- Jul 24, 2006
- Record last updated
- Sep 10, 2015 (not updated in 11 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20140602001756); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest medical physician assistant records → All 3,376 in California → Look up another NPI →
Also registered at 25775 Mcbean Pkwy
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Karen Ann Littmann-Davis in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license PA12439Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
25% fewer Medicare Part D claims than the average medical physician assistant in 2024
857 Medicare Part D claims for 535 beneficiaries, against an average of 1,148 among the 23,801 providers of this specialty who prescribed in Part D. 24 claims were for opioids.
Most prescribed
- Atorvastatin Calcium65 claims
- Levothyroxine Sodium50 claims
- Rosuvastatin Calcium41 claims
- Losartan Potassium29 claims
- Amlodipine Besylate28 claims
- Metformin Hcl28 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.
Bills Medicare through one group practice
- The Regents OF The University OF CaliforniaSanta Monica, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Karen Ann Littmann-Davis among 3,376 medical physician assistant records in California
Karen Ann Littmann-Davis, P.A.C. is one of 3,376 medical physician assistant records with a practice address in California. 69% 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 2% of them.
- NPI issued2006 · 2% of these records are older, 80% newer
- In a Medicare fileYes · 69% of these records are
- In the CMS Doctors and Clinicians fileYes · 40% of these records are
- Graduated1985 · median 2012 among the 1,347 with a school on file
- Record last updated2015 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363AM0700X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Medical Physician Assistant providers in California
There are 3,376 medical physician assistant records in California.
All 3,376 in California → Every provider in Valencia → Medical Physician Assistant nationwide →
The 8 medical physician assistant records with the nearest ZIP codes
- Alison Brown, PA-CValencia, CA 913551255434197
- Michell GuzmanValencia, CA 913551942616909
- Beverly Lassiter-Brown, PA, MPHValencia, CA 913551962670141
- Kathy Lovig Hughes, PA-CValencia, CA 913551679802698
- Francisca Nwosu, PA-CValencia, CA 913551700270915
- Victoria Schooler, PAValencia, CA 913551912577131
- Christina Soliman, PA-CValencia, CA 913551336536127
- Laura Stevenson, PA-CValencia, CA 913551437116639
Common questions
What is Karen Ann Littmann-Davis, P.A.C.'s NPI number?
Karen Ann Littmann-Davis, P.A.C.'s National Provider Identifier (NPI) is 1609898998, issued on Jul 24, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Karen Ann Littmann-Davis, P.A.C. located?
The NPPES record lists a practice address at 25775 Mcbean Pkwy, Valencia, CA, 91355. Phone: (661) 753-5464. Providers update this record themselves, so call before visiting.
How can I verify Karen Ann Littmann-Davis, P.A.C.'s license?
NPPES lists California license number PA12439, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Karen Ann Littmann-Davis, P.A.C. prescribe under Medicare Part D?
In 2024, Karen Ann Littmann-Davis, P.A.C. had 857 Medicare Part D claims for 535 beneficiaries; the average among medical physician assistant prescribers was 1,148. 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.