Mark Jennings, M.D.
NPI 1578538955 · Surgery Physician · Cincinnati, OH
Enrolled with Medicare as Practitioner - General Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Jennings, M.D. is a Surgery Physician provider in Cincinnati, OH (NPI 1578538955).
Provider details
- NPI number
- 1578538955
- Entity type
- Individual
- Primary specialty
- Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 35085981 (OH)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
140 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) |
|---|---|---|
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 48 | $124 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 26 | $158 |
| Subsequent Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 25 Minutes99231 | 21 | $47 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 12 | $85 |
| Removal of Gallbladder With X-Ray Study of Bile Ducts Using an Endoscope47563 | 11 | $690 |
| Repair of Groin Hernia (5 Years Or Older) |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 8 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Oxycodone Hcl/Acetaminophenbrand: Oxycodone-Acetaminophen | 103 | 90 |
| Hydrochlorothiazide | 49 | — |
| Levothyroxine Sodium | 33 | — |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 21 | — |
| Sertraline Hcl | 19 | — |
| Methotrexate Sodiumbrand: Methotrexate | 18 | — |
| Oxycodone Hcl |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$20 across 1 record (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
- 2006-02-21
- Last updated
- 2019-09-26
Frequently asked questions
- What is Mark Jennings's NPI number?
- Mark Jennings's National Provider Identifier (NPI) is 1578538955, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Jennings's specialty?
- Mark Jennings is listed in the NPPES registry with a primary specialty of Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Jennings located?
- Mark Jennings's practice location on file with NPPES is 3300 Mercy Health Blvd Ste 2010, Cincinnati, OH 45211-1103.
- What is Mark Jennings's phone number?
- The practice phone number listed in the NPPES registry for Mark Jennings is (513) 961-4335.
- Does Mark Jennings accept Medicare?
- Mark Jennings is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Jennings's NPI active?
- Yes — Mark Jennings's NPI (1578538955) is active in the NPPES registry as of the last update on 2019-09-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.