David Chaffin, M.D.
NPI 1235178377 · Allergy & Immunology Physician · Chattanooga, TN
Enrolled with Medicare as Practitioner - Allergy/Immunology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
David Chaffin, M.D. is a Allergy & Immunology Physician provider in Chattanooga, TN (NPI 1235178377).
Provider details
- NPI number
- 1235178377
- Entity type
- Individual
- Primary specialty
- Allergy & Immunology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 57291 (GA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
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
5 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
3,441 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 | 1,293 | $3 |
| Professional Service for Preparation and Provision of 1 Or More Antigens95165 | 711 | $13 |
| Test for Allergy Using Allergenic Extract Injected Into Skin95024 | 590 | $7 |
| Professional Service for Multiple Injections of Allergen95117 | 556 | $11 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 104 | $88 |
| Test to Measure Rate of Airflow94375 | 75 | $37 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 16 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Fluticasone Propionate | 232 | 101 |
| Azelastine Hcl | 153 | 88 |
| Montelukast Sodium | 67 | 20 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 49 | 30 |
| Ipratropium Bromide | 44 | 19 |
| Budesonide/Formoterol Fumaratebrand: Budesonide-Formoterol Fumarate | 31 | — |
| Beclomethasone Dipropionatebrand: Qvar Redihaler |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$976 across 42 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
Additional practice locations (4)
- 1011 Professional BlvdDalton, GA 30720-2506Phone: (706) 217-6950Fax: (706) 217-6967
- 101 Crye Leike DrFort Oglethorpe, GA 30742-4056Phone: (706) 648-4336Fax: (706) 861-4597
- 2253 Chambliss Ave NwCleveland, TN 37311-3861Phone: (423) 499-4100Fax: (423) 499-1945
- 4980 Alpha LnHixson, TN 37343-5470Phone: (423) 499-4100Fax: (423) 499-1945
Registry dates
- Enumerated
- 2006-06-05
- Last updated
- 2023-04-07
- Certified
- 2023-04-07
Frequently asked questions
- What is David Chaffin's NPI number?
- David Chaffin's National Provider Identifier (NPI) is 1235178377, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is David Chaffin's specialty?
- David Chaffin is listed in the NPPES registry with a primary specialty of Allergy & Immunology Physician (Allopathic & Osteopathic Physicians).
- Where is David Chaffin located?
- David Chaffin's practice location on file with NPPES is 1720 Gunbarrel Rd, Chattanooga, TN 37421-3192.
- What is David Chaffin's phone number?
- The practice phone number listed in the NPPES registry for David Chaffin is (423) 499-4100.
- Does David Chaffin accept Medicare?
- David Chaffin is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is David Chaffin's NPI active?
- Yes — David Chaffin's NPI (1235178377) is active in the NPPES registry as of the last update on 2023-04-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.