Dr. James Warren Siler, MD
- Medicare services, 2024
- 870
- Medicare patients, 2024
- 290
- Part D claims, 2024
- 11,783
- Hospital affiliations
- 1
- Industry payments
- $1,503
- 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 Dr. Siler'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.
Dr. James Warren Siler is an internist in Springfield, Missouri
Dr. Siler practices at Mercy Hospital Springfield & Children's Mercy in Springfield, Missouri.
Dr. Siler's NPI, 1114996907, was assigned on March 15, 2006. Dr. Siler graduated from University of Kansas School of Med (KC/Wich/Sal) in 1992. Dr. Siler holds Missouri license 2019001303.
- NPI
- 1114996907NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7911942263
- NPI enumeration date
- March 15, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (417) 820-2000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 60
- Medical school graduation
- 1992
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. James Warren Siler practices at Mercy Hospital Springfield & Children's Mercy in Springfield, Missouri
Dr. Siler'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
Dr. James Warren Siler is affiliated with 5 sites of care and 2 medical groups
Dr. Siler's primary practice is Mercy Hospital Springfield & Children's Mercy in Springfield, Missouri. Dr. Siler is also affiliated with Mercy Hospital Springfield. The medical group on file is Mercy Clinic Family Medicine - Hollister. Dmand AI also links Dr. Siler to 2 more group practices and clinics, 1 home health agency and 1 medical group, each 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 Dr. James Warren Siler's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Siler practices, 4 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 |
| +4 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. James Warren Siler is one of 2,114 internists in Missouri
Internal medicine is Dr. Siler's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dmand AI has Dr. Siler's licenses on file in 2 states: Missouri and Kansas.
Specialties and state licenses
- Internal medicine, MissouriPrimary
- Kansas license
Internists near Dr. Siler
Counts of internists 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
Dr. James Warren Siler billed Medicare for 870 services in 2024
CMS data shows 870 Medicare services from Dr. Siler across 8 procedure codes in 2024, for 290 Medicare patients. Medicare paid $70,854 for them. Every service was in an office.
Dr. Siler's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 5922024: 5517%
- Other services
- 2023: 2802024: 2771%
- Tests and treatments
- 2023: 1082024: 4261%
Dr. Siler compared with the Missouri median for internists, 2024
- Dr. Siler
- Missouri median
- Medicare services
- 870vs 53064% above
- Medicare patients
- 290vs 21137% above
- Part D claims
- 11,004vs 32533.9 times
Medians across 2,076 internists in Missouri with Dmand AI profiles that report each measure.
Dr. Siler's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Siler and other internists in Missouri.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. James Warren Siler treated 290 Medicare patients in 2024, average age 74
CMS counts 290 Medicare patients who saw Dr. Siler in 2024. The largest group is 65 to 74, with 138 patients. 75% of them have high cholesterol, and 72% have high blood pressure. 7% are also on Medicaid. Their average risk score is 1.13, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Siler's median patient age at 67, with 44% women.
Dr. Siler's Medicare patients by age, 2024
Dr. Siler's Medicare patients by sex, 2024
- Women13948%
- Men15152%
Chronic conditions among Dr. Siler's Medicare patients, 2024
- High cholesterol75%
- High blood pressure72%
- Arthritis49%
- Chronic kidney disease28%
- Diabetes26%
- Ischemic heart disease26%
- Mood disorders22%
- Depression21%
Share of Medicare patients with each condition. A patient can have several.
Dr. Siler's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 67
Patient panel by sex, all payers
- Women44%
- Men56%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. James Warren Siler wrote 11,783 Medicare Part D claims in 2024
In 2024, Dr. Siler wrote 11,783 Medicare Part D claims for 1,054 patients. 84% of them were for generic drugs. CMS names the drug for 11,004 of them, across 158 drugs with 11 or more claims each, at $901,944 in total drug cost. In 2023, CMS named 10,069 claims across 144 drugs.
Dr. Siler's Part D claims by kind of drug, 2024
- Generic9,915 claims84%
- Brand-name1,784 claims15%
- Other84 claims1%
Dr. Siler's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Siler's Part D claims, 2024
- Opioids3%354 of 11,783 claims
- Antibiotics1%112 of 11,783 claims
- Antipsychotics, patients 65 and over0%12 of 11,783 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 10,0692024: 11,0049%
Drugs named by CMS: 158 in 2024, 144 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. James Warren Siler offers telehealth to Medicare patients
Dr. Siler accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Siler as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Removal of skin lesions: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. James Warren Siler received $1,503 in industry payments from 2016 to 2023
CMS Open Payments shows 143 general payments to Dr. Siler from 16 drug and device companies from 2016 to 2023. Food and beverage make up the largest share, 100% of the total. Sanofi and Genzyme US Companies paid the most, $376.
General payments to Dr. Siler by program year, 2016 to 2023
Companies that paid Dr. Siler the most, 2016 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. James Warren Siler graduated from University of Kansas School of Med (KC/Wich/Sal)
Dr. Siler graduated from University of Kansas School of Med (KC/Wich/Sal) in 1992.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. James Warren Siler'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 services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| 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 and Drug (CMS) (opens in a new tab)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)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| 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 Dr. James Warren Siler
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. James Warren Siler's NPI number?
Dr. James Warren Siler's NPI number is 1114996907. It was assigned on March 15, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. James Warren Siler?
Dr. James Warren Siler is an internist in Springfield, Missouri. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. James Warren Siler practice?
Dr. Siler practices at 1235 E Cherokee St, Springfield, MO 65804. Dr. Siler's primary practice is Mercy Hospital Springfield & Children's Mercy in Springfield, Missouri. Dmand AI also links Dr. Siler to 2 group practices and clinics, 1 home health agency and 1 medical group.
What is Dr. James Warren Siler's office phone number?
The practice phone on file for Dr. Siler is (417) 820-2000.
What is Dr. James Warren Siler's medical license number?
Dr. Siler holds Missouri license 2019001303, one of the licenses on file in 2 states.
Which states has Dr. James Warren Siler been licensed in?
Dmand AI has state licenses on file for Dr. Siler in Missouri and Kansas.
Which hospitals is Dr. James Warren Siler affiliated with?
Dr. Siler is affiliated with Mercy Hospital Springfield.
What medical group is Dr. James Warren Siler part of?
Dr. Siler is linked to Mercy Clinic Family Medicine - Hollister. Dmand AI links Dr. Siler to 1 more medical group.
Does Dr. James Warren Siler accept Medicare?
Yes. CMS data shows Dr. Siler billed Medicare for 870 services in 2024, and Dr. Siler accepts Medicare assignment.
Does Dr. James Warren Siler offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Siler as offering telehealth services.
Show 6 more questionsShow fewer questions
How many Medicare patients does Dr. James Warren Siler see?
CMS counts 290 Medicare patients who saw Dr. Siler in 2024, with an average age of 74.
What services does Dr. James Warren Siler bill to Medicare?
In 2024, Dr. Siler's most billed Medicare services were office visit, established patient (99214), medicare service (G0439) and office visit, established patient (99213).
Where did Dr. James Warren Siler go to medical school?
Dr. Siler graduated from University of Kansas School of Med (KC/Wich/Sal) in 1992.
What drugs does Dr. James Warren Siler prescribe most?
In 2024 Medicare Part D data, Dr. Siler's most prescribed drugs by claims were Atorvastatin Calcium, Levothyroxine Sodium and Losartan Potassium.
Has Dr. James Warren Siler received payments from drug or device companies?
CMS Open Payments shows $1,503 in general payments to Dr. Siler from 16 companies from 2016 to 2023. The largest total came from Sanofi and Genzyme US Companies.
How long has Dr. James Warren Siler been practicing?
Dr. Siler graduated from medical school in 1992, 34 years ago.
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