Marc Allen, DO
NPI 1356309892 · Internal Medicine Physician · Commack, NY
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marc Allen, DO is a Internal Medicine Physician provider in Commack, NY (NPI 1356309892).
Provider details
- NPI number
- 1356309892
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- License
- 2238341 (NY)
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
12,513 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) |
|---|---|---|
| Chronic Care Management Services, First 20 Minutes of Clinical Staff Time Directed By Health Care Professional, Per Calendar Month99490 | 3,336 | $73 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 1,332 | $142 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 945 | $94 |
| Urinalysis, Manual Test81002 | 313 | $3 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 305 | $9 |
| Test to Measure Expiratory Airflow and Volume94010 | 296 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 129 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 714 | 209 |
| Levothyroxine Sodium | 367 | 95 |
| Amlodipine Besylate | 321 | 93 |
| Losartan Potassium | 311 | 82 |
| Metoprolol Succinate | 238 | 70 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 216 | 73 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$38 across 2 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
- 2006-05-03
- Last updated
- 2016-06-14
Frequently asked questions
- What is Marc Allen's NPI number?
- Marc Allen's National Provider Identifier (NPI) is 1356309892, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marc Allen's specialty?
- Marc Allen is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Marc Allen located?
- Marc Allen's practice location on file with NPPES is 358 Veterans Memorial Highway, Commack, NY 11725.
- What is Marc Allen's phone number?
- The practice phone number listed in the NPPES registry for Marc Allen is (631) 543-8844.
- Does Marc Allen accept Medicare?
- Marc Allen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marc Allen's NPI active?
- Yes — Marc Allen's NPI (1356309892) is active in the NPPES registry as of the last update on 2016-06-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.