Christopher A. Chaffin, PA
- Medicare patients, 2024
- 129
- Part D claims, 2024
- 386
- Hospital affiliations
- 1
- Industry payments
- $72
- Medical group
- 1
- Practice address
- 1235 E Cherokee St, Springfield, MO 65804
- Practice phone
- Call (417) 820-2000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Mercy Hospital Springfield & Children's Mercy
Springfield, Missouri
Find Christopher Chaffin's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Christopher A. Chaffin is a physician assistant in Springfield, Missouri
Christopher Chaffin practices at Mercy Hospital Springfield & Children's Mercy in Springfield, Missouri.
Christopher Chaffin's NPI, 1104129436, was assigned on December 8, 2010. Christopher Chaffin holds Missouri license 2011001602.
- NPI
- 1104129436NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7416137179
- NPI enumeration date
- December 8, 2010
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (417) 820-2000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 42
- Medical school graduation
- 2010
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Christopher A. Chaffin practices at Mercy Hospital Springfield & Children's Mercy in Springfield, Missouri
Christopher Chaffin's primary practice is Mercy Hospital Springfield & Children's Mercy, at 1235 E Cherokee St, Springfield, MO 65804 in Greene County. The practice phone is (417) 820-2000.
- Mercy Hospital Springfield & Children's Mercy1235 E Cherokee St, Springfield, MO 65804 · Greene CountyPhone(417) 820-2000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Christopher A. Chaffin is affiliated with 3 sites of care and 1 medical group
Christopher Chaffin's primary practice is Mercy Hospital Springfield & Children's Mercy in Springfield, Missouri. Christopher Chaffin is also affiliated with Mercy Hospital Springfield. The medical group on file is Mercy Clinic Family Medicine - Hollister. Dmand AI also links Christopher Chaffin to 1 more group practice or clinic, named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Christopher A. Chaffin's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Christopher Chaffin practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Mercy Hospital Springfield & Children's Mercy | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Christopher A. Chaffin is one of 1,484 physician assistants in Missouri
Physician assistant is Christopher Chaffin's primary specialty in the NPI Registry, under taxonomy code 363A00000X. Christopher Chaffin is licensed in Missouri.
Specialties and state licenses
- Physician assistant, MissouriPrimary
Physician assistants near Christopher Chaffin
Counts of physician assistants with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Christopher A. Chaffin treated 129 Medicare patients in 2024, average age 71
CMS counts 129 Medicare patients who saw Christopher Chaffin in 2024. The largest group is 65 to 74, with 74 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 9% are also on Medicaid. Their average risk score is 1.42, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Christopher Chaffin's median patient age at 66, with 62% women.
Christopher Chaffin's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Christopher Chaffin's Medicare patients by sex, 2024
- Women8163%
- Men4837%
Chronic conditions among Christopher Chaffin's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis55%
- Diabetes41%
- Chronic kidney disease39%
- Mood disorders39%
- Anxiety36%
- Depression34%
Share of Medicare patients with each condition. A patient can have several.
Christopher Chaffin's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 66
Patient panel by sex, all payers
- Women62%
- Men38%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Christopher A. Chaffin wrote 386 Medicare Part D claims in 2024
In 2024, Christopher Chaffin wrote 386 Medicare Part D claims for 142 patients. 94% of them were for generic drugs.
Christopher Chaffin's Part D claims by kind of drug, 2024
- Generic361 claims94%
- Brand-name25 claims6%
Drug classes CMS tracks in Christopher Chaffin's Part D claims, 2024
- Opioids8%30 of 386 claims
- Antibiotics6%25 of 386 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Christopher A. Chaffin takes part in Medicare
Christopher Chaffin accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Christopher A. Chaffin received $72 in industry payments in 2025
CMS Open Payments shows 4 general payments to Christopher Chaffin from 2 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. Eli Lilly and Company paid the most, $50.
Companies that paid Christopher Chaffin the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Christopher A. Chaffin's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Christopher A. Chaffin
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Christopher A. Chaffin's NPI number?
Christopher A. Chaffin's NPI number is 1104129436. It was assigned on December 8, 2010, and it is active in the NPI Registry.
What does Christopher A. Chaffin specialize in?
Christopher A. Chaffin is a physician assistant in Springfield, Missouri. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does Christopher A. Chaffin practice?
Christopher Chaffin practices at 1235 E Cherokee St, Springfield, MO 65804. Christopher Chaffin's primary practice is Mercy Hospital Springfield & Children's Mercy in Springfield, Missouri. Dmand AI also links Christopher Chaffin to 1 group practice or clinic.
What is Christopher A. Chaffin's office phone number?
The practice phone on file for Christopher Chaffin is (417) 820-2000.
What is Christopher A. Chaffin's medical license number?
Christopher Chaffin holds Missouri license 2011001602.
Which hospitals is Christopher A. Chaffin affiliated with?
Christopher Chaffin is affiliated with Mercy Hospital Springfield.
What medical group is Christopher A. Chaffin part of?
Christopher Chaffin is linked to Mercy Clinic Family Medicine - Hollister.
Does Christopher A. Chaffin accept Medicare?
Yes. CMS lists Christopher Chaffin as accepting Medicare assignment.
How many Medicare patients does Christopher A. Chaffin see?
CMS counts 129 Medicare patients who saw Christopher Chaffin in 2024, with an average age of 71.
Has Christopher A. Chaffin received payments from drug or device companies?
CMS Open Payments shows $72 in general payments to Christopher Chaffin from 2 companies from 2025 to 2025. The largest total came from Eli Lilly and Company.
How long has Christopher A. Chaffin been practicing?
Christopher Chaffin graduated from medical school in 2010, 16 years ago.
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