Darren Lynch, MD
NPI 1922087832 · Family Medicine Physician · Northampton, MA
Enrolled with Medicare as Practitioner - General Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Provider details
- NPI number
- 1922087832
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- License
- 219836 (MA)
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
17,811 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) |
|---|---|---|
| Measurement of Antibody (ige) to Allergic Substance, Crude Allergen Extract, Each86003 | 6,539 | $5 |
| Test for Allergy Using Allergenic Extract Injected Into Skin95024 | 4,355 | $8 |
| Professional Service for Preparation and Provision of 1 Or More Antigens95165 | 3,535 | $15 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 1,791 | $130 |
| Professional Service for Multiple Injections of Allergen95117 | 1,214 | $13 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 102 |
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 |
|---|---|---|
| Levothyroxine Sodium | 107 | 30 |
| Thyroid,porkbrand: Armour Thyroid | 100 | 28 |
| Valacyclovir Hclbrand: Valacyclovir | 87 | 27 |
| Fluconazole | 57 | 15 |
| Sirolimus | 52 | 19 |
| Cromolyn Sodium | 48 | — |
| Doxycycline Hyclate | 48 | 20 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-01-10
- Last updated
- 2020-06-10
- Certified
- 2020-06-10
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.