Barbara Knapp-Colston, ANP
NPI 1235205071 · Adult Health Nurse Practitioner · Laguna Hills, CA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Barbara Knapp-Colston, ANP is a Adult Health Nurse Practitioner provider in Laguna Hills, CA (NPI 1235205071).
Provider details
- NPI number
- 1235205071
- Entity type
- Individual
- Primary specialty
- Adult Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- ANP
- Sex
- Female
- Sole proprietor
- Yes
- License
- 339965 (CA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
75 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Residence Visit for Established Patient With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 40 Minutes99349 | 75 | $113 |
Typical Medicare-allowed amounts for these services range $113–$113 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 10 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Quetiapine Fumarate | 41 |
| Atorvastatin Calcium | 35 |
| Levothyroxine Sodium | 23 |
| Omeprazole | 19 |
| Apixabanbrand: Eliquis | 17 |
| Donepezil Hcl | 15 |
| Divalproex Sodium | 14 |
| Mirtazapine | 14 |
| Trazodone Hcl | 14 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-11-24
- Last updated
- 2007-07-08
Frequently asked questions
- What is Barbara Knapp-Colston's NPI number?
- Barbara Knapp-Colston's National Provider Identifier (NPI) is 1235205071, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Barbara Knapp-Colston's specialty?
- Barbara Knapp-Colston is listed in the NPPES registry with a primary specialty of Adult Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Barbara Knapp-Colston located?
- Barbara Knapp-Colston's practice location on file with NPPES is 22921 Triton Way, Laguna Hills, CA 92653-1236.
- What is Barbara Knapp-Colston's phone number?
- The practice phone number listed in the NPPES registry for Barbara Knapp-Colston is (949) 366-1053.
- Does Barbara Knapp-Colston accept Medicare?
- Barbara Knapp-Colston is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Barbara Knapp-Colston's NPI active?
- Yes — Barbara Knapp-Colston's NPI (1235205071) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.