Melissa Merrigan
NPI 1871114306 · Family Nurse Practitioner · Klamath Falls, OR
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Melissa Merrigan is a Family Nurse Practitioner provider in Klamath Falls, OR (NPI 1871114306).
Provider details
- NPI number
- 1871114306
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Female
- Sole proprietor
- No
- License
- 202007154NP-PP (OR)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
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
6 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
303 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 Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 172 | $54 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 61 | $80 |
| Removal of Tissue From Wound, 20.0 Sq Cm Or Less97597 | 44 | $29 |
| Established Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More99212 | 26 | $29 |
Typical Medicare-allowed amounts for these services range $29–$80 (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 · 25 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Lisinopril | 47 | 24 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 45 | 22 |
| Atorvastatin Calcium | 35 | 17 |
| Omeprazole | 31 | 13 |
| Metformin Hcl | 30 | 14 |
| Levothyroxine Sodium | 30 | 15 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2020-05-06
- Last updated
- 2026-02-20
- Certified
- 2026-02-20
Frequently asked questions
- What is Melissa Merrigan's NPI number?
- Melissa Merrigan's National Provider Identifier (NPI) is 1871114306, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Melissa Merrigan's specialty?
- Melissa Merrigan is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Melissa Merrigan located?
- Melissa Merrigan's practice location on file with NPPES is 2821 Daggett Ave Ste 100, Klamath Falls, OR 97601-1130.
- What is Melissa Merrigan's phone number?
- The practice phone number listed in the NPPES registry for Melissa Merrigan is (541) 274-6733.
- Does Melissa Merrigan accept Medicare?
- Melissa Merrigan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Melissa Merrigan's NPI active?
- Yes — Melissa Merrigan's NPI (1871114306) is active in the NPPES registry as of the last update on 2026-02-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.