Christopher R. Hemmer, ANP
- Medicare patients, 2024
- 239
- Part D claims, 2024
- 366
- Hospital affiliations
- 4
- Industry payments
- $612
- Medical groups
- 3
- Practice address
- 14805 N Outer 40th Rd, Chesterfield, MO 63017
- Practice phone
- Call (314) 842-0588
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Delmar Gardens South
Chesterfield, Missouri
Find Christopher Hemmer'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 R. Hemmer is a nurse practitioner in Chesterfield, Missouri
Christopher Hemmer practices at Delmar Gardens South in Chesterfield, Missouri.
Christopher Hemmer's NPI, 1700802659, was assigned on July 14, 2006. Christopher Hemmer holds Missouri license 138546.
- NPI
- 1700802659NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2264455633
- NPI enumeration date
- July 14, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (314) 842-0588
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 40
- Medical school graduation
- 2012
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Christopher R. Hemmer practices at Delmar Gardens South in Chesterfield, Missouri
Christopher Hemmer's primary practice is Delmar Gardens South, at 14805 N Outer 40th Rd, Chesterfield, MO 63017 in Saint Louis County. The practice phone is (314) 842-0588.
- Delmar Gardens South14805 N Outer 40th Rd, Chesterfield, MO 63017 · Saint Louis CountyPhone(314) 842-0588
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Christopher R. Hemmer is affiliated with 7 sites of care and 3 medical groups
Christopher Hemmer's primary practice is Delmar Gardens South in Chesterfield, Missouri. Christopher Hemmer is also affiliated with St. Luke's Hospital. The medical group on file is Southeastern Emergency Physicians of Memphis LLC. Dmand AI also links Christopher Hemmer to 3 more hospitals, 2 group practices and clinics and 2 medical groups, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Christopher R. Hemmer's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Christopher Hemmer practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Delmar Gardens South | Available with a free account |
| +6 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Christopher R. Hemmer is one of 1,347 nurse practitioners in Missouri
Nurse practitioner is Christopher Hemmer's primary specialty in the NPI Registry, under taxonomy code 363L00000X. Christopher Hemmer is licensed in Missouri.
Specialties and state licenses
- Nurse practitioner, MissouriPrimary
Nurse practitioners near Christopher Hemmer
Counts of nurse practitioners 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 R. Hemmer treated 239 Medicare patients in 2024, average age 76
CMS counts 239 Medicare patients who saw Christopher Hemmer in 2024. The largest group is 75 to 84, with 83 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 11% are also on Medicaid. Their average risk score is 1.69, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Christopher Hemmer's median patient age at 69, with 45% women.
Christopher Hemmer's Medicare patients by age, 2024
Christopher Hemmer's Medicare patients by sex, 2024
- Women13556%
- Men10444%
Chronic conditions among Christopher Hemmer's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis70%
- Mood disorders44%
- Anxiety43%
- Depression42%
- Diabetes41%
- Chronic kidney disease36%
Share of Medicare patients with each condition. A patient can have several.
Christopher Hemmer's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 69
Patient panel by sex, all payers
- Women45%
- Men53%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Christopher R. Hemmer wrote 366 Medicare Part D claims in 2024
In 2024, Christopher Hemmer wrote 366 Medicare Part D claims for 209 patients. 95% of them were for generic drugs.
Christopher Hemmer's Part D claims by kind of drug, 2024
- Generic349 claims95%
- Brand-name17 claims5%
Drug classes CMS tracks in Christopher Hemmer's Part D claims, 2024
- Opioids22%82 of 366 claims
- Antibiotics20%74 of 366 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 R. Hemmer takes part in Medicare
Christopher Hemmer 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 R. Hemmer received $612 in industry payments in 2025
CMS Open Payments shows 5 general payments to Christopher Hemmer from 4 drug and device companies in 2025. Travel and lodging make up the largest share, 79% of the total. Vertex Pharmaceuticals Incorporated paid the most, $484.
General payments to Christopher Hemmer by kind, 2025 to 2025
- Travel and lodging$48479%
- Food and beverage$12821%
Companies that paid Christopher Hemmer 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 R. Hemmer'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 DataDmand AI Org Hierarchy 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 R. Hemmer
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 R. Hemmer's NPI number?
Christopher R. Hemmer's NPI number is 1700802659. It was assigned on July 14, 2006, and it is active in the NPI Registry.
What does Christopher R. Hemmer specialize in?
Christopher R. Hemmer is a nurse practitioner in Chesterfield, Missouri. The primary specialty in the NPI Registry is Nurse Practitioner (taxonomy code 363L00000X).
Where does Christopher R. Hemmer practice?
Christopher Hemmer practices at 14805 N Outer 40th Rd, Chesterfield, MO 63017. Christopher Hemmer's primary practice is Delmar Gardens South in Chesterfield, Missouri. Dmand AI also links Christopher Hemmer to 3 hospitals, 2 group practices and clinics and 2 medical groups.
What is Christopher R. Hemmer's office phone number?
The practice phone on file for Christopher Hemmer is (314) 842-0588.
What is Christopher R. Hemmer's medical license number?
Christopher Hemmer holds Missouri license 138546.
Which hospitals is Christopher R. Hemmer affiliated with?
Christopher Hemmer is affiliated with St. Luke's Hospital. Dmand AI links Christopher Hemmer to 3 more hospitals.
What medical group is Christopher R. Hemmer part of?
Christopher Hemmer is linked to Southeastern Emergency Physicians of Memphis LLC. Dmand AI links Christopher Hemmer to 2 more medical groups.
Does Christopher R. Hemmer accept Medicare?
Yes. CMS lists Christopher Hemmer as accepting Medicare assignment.
How many Medicare patients does Christopher R. Hemmer see?
CMS counts 239 Medicare patients who saw Christopher Hemmer in 2024, with an average age of 76.
Has Christopher R. Hemmer received payments from drug or device companies?
CMS Open Payments shows $612 in general payments to Christopher Hemmer from 4 companies from 2025 to 2025. The largest total came from Vertex Pharmaceuticals Incorporated.
How long has Christopher R. Hemmer been practicing?
Christopher Hemmer graduated from medical school in 2012, 14 years ago.
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