Jason Slack, D.O.
NPI 1043692197 · Internal Medicine Physician · Hagerstown, MD
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jason Slack, D.O. is a Internal Medicine Physician provider in Hagerstown, MD (NPI 1043692197).
Provider details
- NPI number
- 1043692197
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- No
- License
- 05-40745 (KS)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
10 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
1,126 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 35 Minutes99232 | 636 | $77 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 318 | $112 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 81 | $170 |
| Subsequent Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 25 Minutes99231 | 40 | $49 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 32 | $116 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 11 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisone | 47 | 46 |
| Cefdinir | 28 | 28 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 25 | 25 |
| Atorvastatin Calcium | 22 | 22 |
| Metoprolol Tartrate | 21 | 21 |
| Furosemide | 17 | 17 |
| Doxycycline Hyclate | 16 | 16 |
Practice location
Mailing address
Additional practice locations (1)
- 1102 W 32nd StJoplin, MO 64804-3503Phone: (417) 347-4616
Registry dates
- Enumerated
- 2015-06-25
- Last updated
- 2023-12-29
- Certified
- 2023-12-29
Frequently asked questions
- What is Jason Slack's NPI number?
- Jason Slack's National Provider Identifier (NPI) is 1043692197, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jason Slack's specialty?
- Jason Slack is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Jason Slack located?
- Jason Slack's practice location on file with NPPES is 11116 Medical Campus Rd, Hagerstown, MD 21742-6710.
- What is Jason Slack's phone number?
- The practice phone number listed in the NPPES registry for Jason Slack is (301) 790-8804.
- Does Jason Slack accept Medicare?
- Jason Slack is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jason Slack's NPI active?
- Yes — Jason Slack's NPI (1043692197) is active in the NPPES registry as of the last update on 2023-12-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.