Mark Knauss, CNP
NPI 1831135052 · Adult Health Nurse Practitioner · Willoughby, OH
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Knauss, CNP is a Adult Health Nurse Practitioner provider in Willoughby, OH (NPI 1831135052).
Provider details
- NPI number
- 1831135052
- Entity type
- Individual
- Primary specialty
- Adult Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- CNP
- Sex
- Male
- Sole proprietor
- No
- License
- RN223048 (OH)
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
20 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
261 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 237 | $62 |
| Subsequent Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 25 Minutes99231 | 24 | $40 |
Typical Medicare-allowed amounts for these services range $40–$62 (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 · 7 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Metoprolol Succinate | 52 | 49 |
| Pantoprazole Sodium | 42 | 42 |
| Furosemide | 38 | 38 |
| Potassium Chloridebrand: Klor-Con M20 | 35 | 35 |
| Oxycodone Hcl | 24 | 24 |
| Amiodarone Hcl | 16 | 16 |
| Potassium Chloride | 11 | 11 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$41 across 4 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
- 2006-06-22
- Last updated
- 2010-03-17
Frequently asked questions
- What is Mark Knauss's NPI number?
- Mark Knauss's National Provider Identifier (NPI) is 1831135052, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Knauss's specialty?
- Mark Knauss is listed in the NPPES registry with a primary specialty of Adult Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Mark Knauss located?
- Mark Knauss's practice location on file with NPPES is 36100 Euclid Ave, Willoughby, OH 44094-4456.
- What is Mark Knauss's phone number?
- The practice phone number listed in the NPPES registry for Mark Knauss is (440) 942-5400.
- Does Mark Knauss accept Medicare?
- Mark Knauss is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Knauss's NPI active?
- Yes — Mark Knauss's NPI (1831135052) is active in the NPPES registry as of the last update on 2010-03-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.