James Porterfield, M.D.
NPI 1912991704 · Cardiovascular Disease Physician · Towson, MD
Enrolled with Medicare as Practitioner - Cardiovascular Disease (cardiology) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
James Porterfield, M.D. is a Cardiovascular Disease Physician provider in Towson, MD (NPI 1912991704).
Provider details
- NPI number
- 1912991704
- Entity type
- Individual
- Primary specialty
- Cardiovascular Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- D0030948 (MD)
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
4,138 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 1,175 | $133 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 797 | $15 |
| Ultrasound of Heart With Color-Depicted Blood Flow, Rate, Direction and Valve Function93306 | 748 | $205 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 192 | $187 |
| Exercise Or Drug-Induced Heart Stress Test With Electrocardiogram (ecg) With Review By Physician93018 | 178 | $14 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 40 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Metoprolol Succinate | 618 | 214 |
| Apixabanbrand: Eliquis | 607 | 166 |
| Atorvastatin Calcium | 401 | 140 |
| Rosuvastatin Calcium | 305 | 107 |
| Rivaroxabanbrand: Xarelto | 244 | 65 |
| Amlodipine Besylate | 223 | 74 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-09-07
- Last updated
- 2013-02-14
Frequently asked questions
- What is James Porterfield's NPI number?
- James Porterfield's National Provider Identifier (NPI) is 1912991704, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is James Porterfield's specialty?
- James Porterfield is listed in the NPPES registry with a primary specialty of Cardiovascular Disease Physician (Allopathic & Osteopathic Physicians).
- Where is James Porterfield located?
- James Porterfield's practice location on file with NPPES is 6569 N Charles St, Towson, MD 21204-6831.
- What is James Porterfield's phone number?
- The practice phone number listed in the NPPES registry for James Porterfield is (410) 825-5150.
- Does James Porterfield accept Medicare?
- James Porterfield is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is James Porterfield's NPI active?
- Yes — James Porterfield's NPI (1912991704) is active in the NPPES registry as of the last update on 2013-02-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.