Mark Ferlan, DO
NPI 1124230370 · Internal Medicine Physician · Manchester, NH
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Ferlan, DO is a Internal Medicine Physician provider in Manchester, NH (NPI 1124230370).
Provider details
- NPI number
- 1124230370
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
- License
- 13956 (NH)
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
751 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) |
|---|---|---|
| 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 | 212 | $16 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 199 | $64 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 165 | $129 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 162 | $94 |
| Transitional Care Management Services for Problem of at Least Moderate Complexity99495 | 13 | $136 |
Typical Medicare-allowed amounts for these services range $16–$136 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
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 | 405 | 124 |
| Amlodipine Besylate | 326 | 91 |
| Levothyroxine Sodium | 324 | 83 |
| Lisinopril | 260 | 80 |
| Pantoprazole Sodium | 238 | 70 |
| Metoprolol Succinate | 200 | 63 |
| Rosuvastatin Calcium |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$106 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
- 2007-05-03
- Last updated
- 2021-08-16
- Certified
- 2021-08-16
Frequently asked questions
- What is Mark Ferlan's NPI number?
- Mark Ferlan's National Provider Identifier (NPI) is 1124230370, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Ferlan's specialty?
- Mark Ferlan is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Ferlan located?
- Mark Ferlan's practice location on file with NPPES is 775 S Main St, Manchester, NH 03102-5143.
- What is Mark Ferlan's phone number?
- The practice phone number listed in the NPPES registry for Mark Ferlan is (603) 625-6198.
- Does Mark Ferlan accept Medicare?
- Mark Ferlan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Ferlan's NPI active?
- Yes — Mark Ferlan's NPI (1124230370) is active in the NPPES registry as of the last update on 2021-08-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.