Mark Harrison, MD
NPI 1285799585 · Cardiovascular Disease Physician · Poughkeepsie, NY
Enrolled with Medicare as Practitioner - Cardiovascular Disease (cardiology) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Harrison, MD is a Cardiovascular Disease Physician provider in Poughkeepsie, NY (NPI 1285799585).
Provider details
- NPI number
- 1285799585
- Entity type
- Individual
- Primary specialty
- Cardiovascular Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 249392 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 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
4,238 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 Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 1,152 | $139 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 1,010 | $18 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 741 | $16 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 555 | $84 |
| Blood Test, Clotting Time85610 | 240 | $4 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 49 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 560 | 178 |
| Apixabanbrand: Eliquis | 397 | 110 |
| Metoprolol Succinate | 381 | 123 |
| Rosuvastatin Calcium | 357 | 121 |
| Losartan Potassium | 321 | 95 |
| Amlodipine Besylate | 318 | 106 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$299 across 15 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
- 2006-12-27
- Last updated
- 2018-09-07
Frequently asked questions
- What is Mark Harrison's NPI number?
- Mark Harrison's National Provider Identifier (NPI) is 1285799585, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Harrison's specialty?
- Mark Harrison is listed in the NPPES registry with a primary specialty of Cardiovascular Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Harrison located?
- Mark Harrison's practice location on file with NPPES is 1 Columbia St, Poughkeepsie, NY 12601.
- What is Mark Harrison's phone number?
- The practice phone number listed in the NPPES registry for Mark Harrison is (845) 473-1188.
- Does Mark Harrison accept Medicare?
- Mark Harrison is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Harrison's NPI active?
- Yes — Mark Harrison's NPI (1285799585) is active in the NPPES registry as of the last update on 2018-09-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.