Barbara Ann Knapp-Colston, ANP
Adult Health Nurse Practitioner · Laguna Hills, CA
Barbara Ann Knapp-Colston, ANP is an adult health nurse practitioner with a practice address in Laguna Hills, California, and NPI 1235205071, issued on Nov 24, 2006. Check the license (California 339965, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Barbara Ann Knapp-Colston
- Credential
- ANP
- Primary taxonomy
- Adult Health Nurse Practitioner 363LA2200X
- License number
- 339965 CA
Self-reported in NPPES; status is on the state search - Practice location
- 22921 Triton Way, Laguna Hills, CA 92653
- Phone
- (949) 366-1053
- Enumerated
- Nov 24, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
Also registered at 22921 Triton Way
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Erin Baker, NPFamily Nurse Practitioner1164534368
- Patricia Gifford, MDGeriatric Medicine (Internal Medicine) Physician1487725552
- Maria Koziol, NPFamily Nurse Practitioner1407801368
- Cheryl Villasenor, NPFamily Nurse Practitioner1952356925
- Norman Vinn, D.O.Geriatric Medicine (Family Medicine) Physician1568417525
- Marcia Whalen, D.O.Family Medicine Physician1578502829
Verify Barbara Ann Knapp-Colston in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 339965Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
73% fewer Medicare Part D claims than the average adult health nurse practitioner in 2024
349 Medicare Part D claims for 28 beneficiaries, against an average of 1,280 among the 16,937 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims.
Most prescribed
- Quetiapine Fumarate41 claims
- Atorvastatin Calcium35 claims
- Levothyroxine Sodium23 claims
- Omeprazole19 claims
- Eliquis17 claims
- Donepezil Hcl15 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.
Adult Health Nurse Practitioner providers in California
There are 1,405 adult health nurse practitioner records in California.
Other adult health nurse practitioner records in California
- Joel Aandahl, NPVallejo, CA1891423653
- Corey Abbott, N.P.Claremont, CA1457766107
- Melanie Abbott, RNSan Diego, CA1124812730
- Michael Abney, FNPPleasanton, CA1336336833
- Ilona Abramova, NPWest Hills, CA1588066179
- Angela Acfalle, NP CNSLa Jolla, CA1013983857
- Mary Ackerman, NPRichmond, CA1154406155
- Marie Acorda Reece, NPLos Angeles, CA1528331485
- Judith Adams, C-ANPSanta Clarita, CA1831109297
- James AgatepSanta Ana, CA1578939153
Common questions
What is Barbara Ann Knapp-Colston, ANP's NPI number?
Barbara Ann Knapp-Colston, ANP's National Provider Identifier (NPI) is 1235205071, issued on Nov 24, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Barbara Ann Knapp-Colston, ANP located?
The NPPES record lists a practice address at 22921 Triton Way, Laguna Hills, CA, 92653. Phone: (949) 366-1053. Providers update this record themselves, so call before visiting.
How can I verify Barbara Ann Knapp-Colston, ANP's license?
NPPES lists California license number 339965, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Barbara Ann Knapp-Colston, ANP prescribe under Medicare Part D?
In 2024, Barbara Ann Knapp-Colston, ANP had 349 Medicare Part D claims for 28 beneficiaries; the average among adult health nurse practitioner prescribers was 1,280. 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.