Mary Beth Decker
- Medicare patients, 2024
- 606
- Part D claims, 2024
- 95
- Hospital affiliations
- 1
- Industry payments
- $168
- Medical group
- 1
- Practice address
- 1025 Maine Street, Quincy, IL 62301
- Practice phone
- Call (217) 222-6550
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Quincy Medical Group (Maine St)
Rural Health Clinic - Independent · Quincy, Illinois
Find Mary Decker'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.
Mary Beth Decker is a nurse practitioner in Quincy, Illinois
Mary Decker practices at Quincy Medical Group (Maine St) in Quincy, Illinois.
Mary Decker's NPI, 1518409259, was assigned on November 11, 2016. Mary Decker holds Illinois license 209015622.
- NPI
- 1518409259NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5496039414
- NPI enumeration date
- November 11, 2016
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (217) 222-6550
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 36
- Medical school graduation
- 2016
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Mary Beth Decker practices at Quincy Medical Group (Maine St) in Quincy, Illinois
Mary Decker's primary practice is Quincy Medical Group (Maine St), at 1025 Maine Street, Quincy, IL 62301. The practice phone is (217) 222-6550.
- Quincy Medical Group (Maine St)1025 Maine Street, Quincy, IL 62301Phone(217) 222-6550
Source: Dmand AI Affiliation Data
Mary Beth Decker is affiliated with 2 sites of care and 1 medical group
Mary Decker's primary practice is Quincy Medical Group (Maine St) in Quincy, Illinois. Mary Decker is also affiliated with Blessing Hospital. The medical group on file is Quincy Medical Group. Mary Decker's employer is on file too: a rural health clinic (rhc).
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Mary Beth Decker's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Mary Decker practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Quincy Medical Group (Maine St) | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Mary Beth Decker is one of 4,254 nurse practitioners in Illinois
Nurse practitioner is Mary Decker's primary specialty in the NPI Registry, under taxonomy code 363L00000X. Mary Decker is licensed in Illinois.
Specialties and state licenses
- Nurse practitioner, IllinoisPrimary
Nurse practitioners near Mary Decker
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
Mary Beth Decker treated 606 Medicare patients in 2024, average age 76
CMS counts 606 Medicare patients who saw Mary Decker in 2024. The largest group is 65 to 74, with 257 patients. 75% of them have arthritis, and 75% have high blood pressure. 11% are also on Medicaid. Their average risk score is 1.09, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Mary Decker's median patient age at 67, with 63% women.
Mary Decker's Medicare patients by age, 2024
Mary Decker's Medicare patients by sex, 2024
- Women46477%
- Men14223%
Chronic conditions among Mary Decker's Medicare patients, 2024
- Arthritis75%
- High blood pressure75%
- High cholesterol75%
- Osteoporosis45%
- Diabetes28%
- Chronic kidney disease27%
- Ischemic heart disease23%
- Anxiety22%
Share of Medicare patients with each condition. A patient can have several.
Mary Decker'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
- Women63%
- Men37%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Mary Beth Decker wrote 95 Medicare Part D claims in 2024
In 2024, Mary Decker wrote 95 Medicare Part D claims for 50 patients. 99% of them were for generic drugs.
Mary Decker's Part D claims by kind of drug, 2024
- Generic94 claims99%
- Brand-name and other1 claims1%
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Mary Beth Decker takes part in Medicare
Mary Decker 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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Mary Beth Decker received $168 in industry payments in 2025
CMS Open Payments shows 10 general payments to Mary Decker from 4 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. Amgen Inc. paid the most, $86.
Companies that paid Mary Decker 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 Mary Beth Decker'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 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 Mary Beth Decker
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Mary Beth Decker's NPI number?
Mary Beth Decker's NPI number is 1518409259. It was assigned on November 11, 2016, and it is active in the NPI Registry.
What does Mary Beth Decker specialize in?
Mary Beth Decker is a nurse practitioner in Quincy, Illinois. The primary specialty in the NPI Registry is Nurse Practitioner (taxonomy code 363L00000X).
Where does Mary Beth Decker practice?
Mary Decker practices at 1025 Maine Street, Quincy, IL 62301. Mary Decker's primary practice is Quincy Medical Group (Maine St) in Quincy, Illinois.
What is Mary Beth Decker's office phone number?
The practice phone on file for Mary Decker is (217) 222-6550.
What is Mary Beth Decker's medical license number?
Mary Decker holds Illinois license 209015622.
Which hospitals is Mary Beth Decker affiliated with?
Mary Decker is affiliated with Blessing Hospital.
What medical group is Mary Beth Decker part of?
Mary Decker is linked to Quincy Medical Group.
Does Mary Beth Decker accept Medicare?
Yes. CMS lists Mary Decker as accepting Medicare assignment.
How many Medicare patients does Mary Beth Decker see?
CMS counts 606 Medicare patients who saw Mary Decker in 2024, with an average age of 76.
Has Mary Beth Decker received payments from drug or device companies?
CMS Open Payments shows $168 in general payments to Mary Decker from 4 companies from 2025 to 2025. The largest total came from Amgen Inc.
How long has Mary Beth Decker been practicing?
Mary Decker graduated from medical school in 2016, 10 years ago.
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