Mark Reyn, MD
NPI 1225064546 · Internal Medicine Physician · Fair Lawn, NJ
Enrolled with Medicare as Practitioner - General Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Reyn, MD is a Internal Medicine Physician provider in Fair Lawn, NJ (NPI 1225064546).
Provider details
- NPI number
- 1225064546
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- MA48289 (NJ)
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
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
1,414 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 | 425 | $131 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 423 | $9 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 216 | $94 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 105 | $133 |
| Telephone Medical Discussion With Physician, 21-30 Minutes99443 | 67 | $132 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 88 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 268 | 80 |
| Amlodipine Besylate | 164 | 49 |
| Rosuvastatin Calcium | 139 | 40 |
| Metoprolol Succinate | 113 | 31 |
| Metformin Hcl | 108 | 30 |
| Escitalopram Oxalate | 106 | 27 |
| Losartan Potassium |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$210 across 7 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
- 2006-06-26
- Last updated
- 2022-03-15
- Certified
- 2022-03-15
Frequently asked questions
- What is Mark Reyn's NPI number?
- Mark Reyn's National Provider Identifier (NPI) is 1225064546, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Reyn's specialty?
- Mark Reyn is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Reyn located?
- Mark Reyn's practice location on file with NPPES is 29 11 Fair Lawn Ave, Fair Lawn, NJ 07410.
- What is Mark Reyn's phone number?
- The practice phone number listed in the NPPES registry for Mark Reyn is (201) 794-0940.
- Does Mark Reyn accept Medicare?
- Mark Reyn is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Reyn's NPI active?
- Yes — Mark Reyn's NPI (1225064546) is active in the NPPES registry as of the last update on 2022-03-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.