Margaret Reiker
- Medicare services, 2024
- 1,161
- Medicare patients, 2024
- 451
- Part D claims, 2024
- 13,077
- Hospital affiliations
- 6
- Industry payments
- $7,436
- Practice address
- 615 New Ballas Road, Saint Louis, MO 63141
- Practice phone
- Call (314) 251-6000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Margaret Reiker's professional email, personal email and mobile number
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Margaret Reiker is an internist in Saint Louis, Missouri
Margaret Reiker practices at Mercy Hospital St. Louis in Saint Louis, Missouri, part of Mercy.
Margaret Reiker's NPI, 1902915853, was assigned on August 30, 2006. Margaret Reiker graduated from Saint Louis University School of Medicine in 1993. Margaret Reiker holds Missouri license 103304.
- NPI
- 1902915853NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7012099898
- NPI enumeration date
- August 30, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (314) 251-6000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 59
- Medical school graduation
- 1993
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Margaret Reiker practices at Mercy Hospital St. Louis in Saint Louis, Missouri
Margaret Reiker's primary practice is Mercy Hospital St. Louis, at 615 New Ballas Road, Saint Louis, MO 63141 in St. Louis County. The practice phone is (314) 251-6000.
- Mercy Hospital St. Louis615 New Ballas Road, Saint Louis, MO 63141 · St. Louis CountyPhone(314) 251-6000
Source: Dmand AI Affiliation Data
Margaret Reiker is affiliated with 11 sites of care and 2 medical groups
Margaret Reiker's primary practice is Mercy Hospital St. Louis in Saint Louis, Missouri, part of Mercy. Margaret Reiker is also affiliated with Missouri Baptist Medical Center. The medical group on file is Mercy Clinic East Communities. Dmand AI also links Margaret Reiker to 4 more hospitals, 2 group practices and clinics, 1 home health agency, 1 hospice, 1 skilled nursing facility and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Margaret Reiker's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Margaret Reiker practices, 11 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Mercy Hospital St. Louis | Available with a free account |
| +10 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Mercy and 6.2K+ hospitals, with verified contacts in the same login.
Margaret Reiker is one of 2,114 internists in Missouri
Internal medicine is Margaret Reiker's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Margaret Reiker is licensed in Missouri.
Specialties and state licenses
- Internal medicine, MissouriPrimary
Internists near Margaret Reiker
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
Margaret Reiker billed Medicare for 1,161 services in 2024
CMS data shows 1,161 Medicare services from Margaret Reiker across 9 procedure codes in 2024, for 451 Medicare patients. Medicare paid $95,557 for them. Every service was in an office.
Margaret Reiker's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 6962024: 6645%
- Other services
- 2023: 3942024: 44713%
- Tests and treatments
- 2023: 802024: 5038%
Margaret Reiker compared with the Missouri median for internists, 2024
- Margaret Reiker
- Missouri median
- Medicare services
- 1,161vs 5302.2 times
- Medicare patients
- 451vs 2112.1 times
- Part D claims
- 12,218vs 32537.6 times
Medians across 2,076 internists in Missouri with Dmand AI profiles that report each measure.
Margaret Reiker'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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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Margaret Reiker treated 451 Medicare patients in 2024, average age 75
CMS counts 451 Medicare patients who saw Margaret Reiker in 2024. The largest group is 65 to 74, with 207 patients. 75% of them have high cholesterol, and 65% have high blood pressure. 4% are also on Medicaid. Their average risk score is 1.16, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Margaret Reiker's median patient age at 70, with 77% women.
Margaret Reiker's Medicare patients by age, 2024
Margaret Reiker's Medicare patients by sex, 2024
- Women36380%
- Men8820%
Chronic conditions among Margaret Reiker's Medicare patients, 2024
- High cholesterol75%
- High blood pressure65%
- Arthritis49%
- Chronic kidney disease28%
- Mood disorders26%
- Depression23%
- Osteoporosis23%
- Anxiety21%
Share of Medicare patients with each condition. A patient can have several.
Margaret Reiker's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 70
Patient panel by sex, all payers
- Women77%
- Men22%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Margaret Reiker wrote 13,077 Medicare Part D claims in 2024
In 2024, Margaret Reiker wrote 13,077 Medicare Part D claims for 913 patients. 89% of them were for generic drugs. CMS names the drug for 12,218 of them, across 168 drugs with 11 or more claims each, at $756,875 in total drug cost. In 2023, CMS named 10,364 claims across 152 drugs.
Margaret Reiker's Part D claims by kind of drug, 2024
- Generic11,638 claims89%
- Brand-name1,393 claims11%
- Other46 claims0%
Margaret Reiker'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 Margaret Reiker's Part D claims, 2024
- Opioids3%420 of 13,077 claims
- Antibiotics3%337 of 13,077 claims
- Antipsychotics, patients 65 and over0%40 of 13,077 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: 10,3642024: 12,21818%
Drugs named by CMS: 168 in 2024, 152 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
Margaret Reiker offers telehealth to Medicare patients
Margaret Reiker accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Margaret Reiker as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
For MedTech and pharma teams
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Margaret Reiker received $7,436 in industry payments from 2017 to 2025
CMS Open Payments shows 435 general payments to Margaret Reiker from 46 drug and device companies from 2017 to 2025. Food and beverage make up the largest share, 100% of the total. Abbvie Inc. paid the most, $1,247.
General payments to Margaret Reiker by program year, 2017 to 2025
General payments to Margaret Reiker by kind, 2017 to 2025
- Food and beverage$7,425100%
- Education$120%
Companies that paid Margaret Reiker the most, 2017 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Margaret Reiker graduated from Saint Louis University School of Medicine
Margaret Reiker graduated from Saint Louis University School of Medicine in 1993.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Margaret Reiker'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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy 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) |
| 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 Margaret Reiker
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Margaret Reiker's NPI number?
Margaret Reiker's NPI number is 1902915853. It was assigned on August 30, 2006, and it is active in the NPI Registry.
What does Margaret Reiker specialize in?
Margaret Reiker is an internist in Saint Louis, Missouri. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Margaret Reiker practice?
Margaret Reiker practices at 615 New Ballas Road, Saint Louis, MO 63141. Margaret Reiker's primary practice is Mercy Hospital St. Louis in Saint Louis, Missouri, part of Mercy. Dmand AI also links Margaret Reiker to 4 hospitals, 2 group practices and clinics, 1 home health agency, 1 hospice, 1 skilled nursing facility and 1 medical group.
What is Margaret Reiker's office phone number?
The practice phone on file for Margaret Reiker is (314) 251-6000.
What is Margaret Reiker's medical license number?
Margaret Reiker holds Missouri license 103304.
Which hospitals is Margaret Reiker affiliated with?
Margaret Reiker practices at Mercy Hospital St. Louis in Saint Louis, Missouri. Margaret Reiker is also affiliated with Missouri Baptist Medical Center. Dmand AI links Margaret Reiker to 4 more hospitals.
What medical group is Margaret Reiker part of?
Margaret Reiker is linked to Mercy Clinic East Communities. Dmand AI links Margaret Reiker to 1 more medical group.
Does Margaret Reiker accept Medicare?
Yes. CMS data shows Margaret Reiker billed Medicare for 1,161 services in 2024, and Margaret Reiker accepts Medicare assignment.
Does Margaret Reiker offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Margaret Reiker as offering telehealth services.
How many Medicare patients does Margaret Reiker see?
CMS counts 451 Medicare patients who saw Margaret Reiker in 2024, with an average age of 75.
Show 5 more questionsShow fewer questions
What services does Margaret Reiker bill to Medicare?
In 2024, Margaret Reiker's most billed Medicare services were office visit, established patient (99214), medicare service (G0439) and medicare service (G2211).
Where did Margaret Reiker go to medical school?
Margaret Reiker graduated from Saint Louis University School of Medicine in 1993.
What drugs does Margaret Reiker prescribe most?
In 2024 Medicare Part D data, Margaret Reiker's most prescribed drugs by claims were Atorvastatin Calcium, Levothyroxine Sodium and Amlodipine Besylate.
Has Margaret Reiker received payments from drug or device companies?
CMS Open Payments shows $7,436 in general payments to Margaret Reiker from 46 companies from 2017 to 2025. The largest total came from Abbvie Inc.
How long has Margaret Reiker been practicing?
Margaret Reiker graduated from medical school in 1993, 33 years ago.
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