Timothy Arnold, MD
NPI 1215904115 · Family Medicine Physician · Aitkin, MN
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Timothy Arnold, MD is a Family Medicine Physician provider in Aitkin, MN (NPI 1215904115).
Provider details
- NPI number
- 1215904115
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 41560 (MN)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 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
34 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 21 | $112 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 13 | $109 |
Typical Medicare-allowed amounts for these services range $109–$112 (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 · 94 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Rosuvastatin Calcium | 388 | 102 |
| Losartan Potassium | 375 | 99 |
| Atorvastatin Calcium | 344 | 87 |
| Lisinopril | 225 | 64 |
| Hydrochlorothiazide | 187 | 55 |
| Omeprazole | 183 | 49 |
| Amlodipine Besylate |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-03-01
- Last updated
- 2020-11-05
- Certified
- 2020-11-05
Frequently asked questions
- What is Timothy Arnold's NPI number?
- Timothy Arnold's National Provider Identifier (NPI) is 1215904115, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Timothy Arnold's specialty?
- Timothy Arnold is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Timothy Arnold located?
- Timothy Arnold's practice location on file with NPPES is 200 Bunker Hill Dr, Aitkin, MN 56431-1865.
- What is Timothy Arnold's phone number?
- The practice phone number listed in the NPPES registry for Timothy Arnold is (218) 927-2157.
- Does Timothy Arnold accept Medicare?
- Timothy Arnold is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Timothy Arnold's NPI active?
- Yes — Timothy Arnold's NPI (1215904115) is active in the NPPES registry as of the last update on 2020-11-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.