Christopher Chaffin, PA
NPI 1104129436 · Physician Assistant · Springfield, MO
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Christopher Chaffin, PA is a Physician Assistant provider in Springfield, MO (NPI 1104129436).
Provider details
- NPI number
- 1104129436
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA
- Sex
- Male
- Sole proprietor
- No
- License
- 2011001602 (MO)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
15 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
111 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 Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 46 | $71 |
| Removal of Gallbladder Using an Endoscope47562 | 24 | $84 |
| Repair of Groin Hernia Using an Endoscope49650 | 17 | $63 |
| Repair of Hernia of Muscle at Esophagus and Stomach Using an Endoscope43281 | 13 | $195 |
| Bypass of Stomach Using an Endoscope43644 | 11 | $212 |
Typical Medicare-allowed amounts for these services range $63–$212 (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 · 7 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Pantoprazole Sodium | 89 | 29 |
| Famotidine | 58 | 28 |
| Ondansetron Hcl | 56 | 33 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 29 | 27 |
| Sucralfate | 20 | — |
| Ondansetronbrand: Ondansetron Odt | 19 | 11 |
| Prochlorperazine Maleate | 11 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$757 across 18 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
- 2010-12-08
- Last updated
- 2011-02-03
Frequently asked questions
- What is Christopher Chaffin's NPI number?
- Christopher Chaffin's National Provider Identifier (NPI) is 1104129436, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Christopher Chaffin's specialty?
- Christopher Chaffin is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Christopher Chaffin located?
- Christopher Chaffin's practice location on file with NPPES is 1965 S Fremont Ave, Springfield, MO 65804-2201.
- What is Christopher Chaffin's phone number?
- The practice phone number listed in the NPPES registry for Christopher Chaffin is (417) 820-3800.
- Does Christopher Chaffin accept Medicare?
- Christopher Chaffin is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Christopher Chaffin's NPI active?
- Yes — Christopher Chaffin's NPI (1104129436) is active in the NPPES registry as of the last update on 2011-02-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.