David Hagaman, MD
NPI 1235221656 · Allergy Physician · Nashville, TN
Enrolled with Medicare as Practitioner - Allergy/Immunology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
David Hagaman, MD is a Allergy Physician provider in Nashville, TN (NPI 1235221656).
Provider details
- NPI number
- 1235221656
- Entity type
- Individual
- Primary specialty
- Allergy PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- MD24342 (TN)
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
4,258 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) |
|---|---|---|
| Test for Allergy Using Allergenic Extract95004 | 2,695 | $3 |
| Professional Service for Multiple Injections of Allergen95117 | 489 | $11 |
| Test for Allergy Using Allergenic Extract Injected Into Skin95024 | 442 | $7 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 271 | $120 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 85 | $84 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 | 78 | $13 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 38 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Azelastine Hcl | 483 | 149 |
| Budesonide/Formoterol Fumaratebrand: Budesonide-Formoterol Fumarate | 137 | 46 |
| Prednisone | 131 | 87 |
| Fluticasone Propion/Salmeterolbrand: Advair Hfa | 124 | 28 |
| Budesonide/Formoterol Fumaratebrand: Symbicort | 117 | 42 |
| Tiotropium Bromidebrand: Spiriva Respimat | 116 | 25 |
| Albuterol Sulfate |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$72,682 across 65 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
- 2006-09-30
- Last updated
- 2022-03-31
- Certified
- 2022-03-31
Frequently asked questions
- What is David Hagaman's NPI number?
- David Hagaman's National Provider Identifier (NPI) is 1235221656, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is David Hagaman's specialty?
- David Hagaman is listed in the NPPES registry with a primary specialty of Allergy Physician (Allopathic & Osteopathic Physicians).
- Where is David Hagaman located?
- David Hagaman's practice location on file with NPPES is 3601 Tvc, Nashville, TN 37232-0001.
- What is David Hagaman's phone number?
- The practice phone number listed in the NPPES registry for David Hagaman is (615) 322-3000.
- Does David Hagaman accept Medicare?
- David Hagaman is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is David Hagaman's NPI active?
- Yes — David Hagaman's NPI (1235221656) is active in the NPPES registry as of the last update on 2022-03-31.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.