Sharon Herndon, MSN, RN, CNP
NPI 1558884064 · Nurse Practitioner · Missoula, MT
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sharon Herndon, MSN, RN, CNP is a Nurse Practitioner provider in Missoula, MT (NPI 1558884064).
Provider details
- NPI number
- 1558884064
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- MSN, RN, CNP
- Sex
- Female
- Sole proprietor
- Yes
- License
- NUR-APRN-LIC-126404 (MT)
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 tenure25% of score
8 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
633 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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 | 195 | $71 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 136 | $86 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 53 | $91 |
| Amplifed Dna Or Rna Probe Detection of Severe Acute Respiratory Syndrome Coronavirus 2 (covid-19) Antigen87635 | 36 | $49 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 36 | $108 |
| Automated Urinalysis Test81003 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 15 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Doxycycline Hyclate | 49 | 49 |
| Ciprofloxacin Hcl | 31 | 30 |
| Levothyroxine Sodium | 30 | 16 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 24 | 24 |
| Atorvastatin Calcium | 24 | 16 |
| Lisinopril | 24 | 17 |
| Cephalexin | 23 | 23 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$116 across 5 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2017-07-18
- Last updated
- 2018-06-16
Frequently asked questions
- What is Sharon Herndon's NPI number?
- Sharon Herndon's National Provider Identifier (NPI) is 1558884064, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sharon Herndon's specialty?
- Sharon Herndon is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Sharon Herndon located?
- Sharon Herndon's practice location on file with NPPES is 2230 N Reserve St Ste 402, Missoula, MT 59808.
- What is Sharon Herndon's phone number?
- The practice phone number listed in the NPPES registry for Sharon Herndon is (406) 493-3110.
- Does Sharon Herndon accept Medicare?
- Sharon Herndon is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sharon Herndon's NPI active?
- Yes — Sharon Herndon's NPI (1558884064) is active in the NPPES registry as of the last update on 2018-06-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.