Carolyn Mattson, ARNP
NPI 1598349235 · Family Nurse Practitioner · Bellingham, WA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Carolyn Mattson, ARNP is a Family Nurse Practitioner provider in Bellingham, WA (NPI 1598349235).
Provider details
- NPI number
- 1598349235
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- ARNP
- Sex
- Female
- Sole proprietor
- No
- License
- AP61166688 (WA)
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
5 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
70 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 32 | $109 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 20 | $9 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 18 | $151 |
Typical Medicare-allowed amounts for these services range $9–$151 (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 · 19 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Atorvastatin Calcium | 44 |
| Amlodipine Besylate | 33 |
| Omeprazole | 33 |
| Losartan Potassium | 30 |
| Lisinopril | 29 |
| Famotidine | 26 |
| Gabapentin | 26 |
| Metformin Hcl | 26 |
| Metformin Hclbrand: Metformin Hcl Er |
Practice location
Mailing address
Registry dates
- Enumerated
- 2021-05-10
- Last updated
- 2021-05-10
- Certified
- 2021-05-10
Frequently asked questions
- What is Carolyn Mattson's NPI number?
- Carolyn Mattson's National Provider Identifier (NPI) is 1598349235, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Carolyn Mattson's specialty?
- Carolyn Mattson is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Carolyn Mattson located?
- Carolyn Mattson's practice location on file with NPPES is 2592 Kwina Rd, Bellingham, WA 98226-9278.
- What is Carolyn Mattson's phone number?
- The practice phone number listed in the NPPES registry for Carolyn Mattson is (360) 384-0464.
- Does Carolyn Mattson accept Medicare?
- Carolyn Mattson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Carolyn Mattson's NPI active?
- Yes — Carolyn Mattson's NPI (1598349235) is active in the NPPES registry as of the last update on 2021-05-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.