Maria A. Thelen, PA-C
- Medicare patients, 2024
- 109
- Part D claims, 2024
- 2,568
- Hospital affiliations
- 4
- Industry payments
- $39
- Medical group
- 1
- Practice address
- 1035 Charlevoix Dr, Grand Ledge, MI 48837
- Practice phone
- Call (517) 627-2181
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
David J. Smith MD
Grand Ledge, Michigan
Find Maria Thelen'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.
Maria A. Thelen is a physician assistant in Grand Ledge, Michigan
Maria Thelen practices at David J. Smith MD in Grand Ledge, Michigan.
Maria Thelen's NPI, 1639115165, was assigned on June 22, 2006. Maria Thelen holds Michigan license 5601004441.
- NPI
- 1639115165NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8022074905
- NPI enumeration date
- June 22, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (517) 627-2181
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 48
- Medical school graduation
- 2004
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Maria A. Thelen practices at David J. Smith MD in Grand Ledge, Michigan
Maria Thelen's primary practice is David J. Smith MD, at 1035 Charlevoix Dr, Grand Ledge, MI 48837 in Eaton County. The practice phone is (517) 627-2181.
- David J. Smith MD1035 Charlevoix Dr, Grand Ledge, MI 48837 · Eaton CountyPhone(517) 627-2181
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Maria A. Thelen is affiliated with 6 sites of care and 1 medical group
Maria Thelen's primary practice is David J. Smith MD in Grand Ledge, Michigan. Maria Thelen is also affiliated with University of Michigan Health-Sparrow Lansing. The medical group on file is Family Medicine of Michigan. Dmand AI also links Maria Thelen to 3 more hospitals and 1 group practice or clinic, 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 Maria A. Thelen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Maria Thelen practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| David J. Smith MD | Available with a free account |
| +5 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Maria A. Thelen is one of 5,857 physician assistants in Michigan
Physician assistant is Maria Thelen's primary specialty in the NPI Registry, under taxonomy code 363A00000X. Maria Thelen is licensed in Michigan.
Specialties and state licenses
- Physician assistant, MichiganPrimary
Physician assistants near Maria Thelen
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
Maria A. Thelen treated 109 Medicare patients in 2024, average age 75
CMS counts 109 Medicare patients who saw Maria Thelen in 2024. The largest group is 65 to 74, with 45 patients. 75% of them have high cholesterol, and 74% have high blood pressure. Their average risk score is 1.13, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Maria Thelen's median patient age at 51, with 69% women.
Maria Thelen's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Maria Thelen's Medicare patients by sex, 2024
- Women7367%
- Men3633%
Chronic conditions among Maria Thelen's Medicare patients, 2024
- High cholesterol75%
- High blood pressure74%
- Chronic kidney disease64%
- Arthritis62%
- Anxiety35%
- Mood disorders28%
- Depression27%
- Diabetes26%
Share of Medicare patients with each condition. A patient can have several.
Maria Thelen's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 51
Patient panel by sex, all payers
- Women69%
- Men30%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Maria A. Thelen wrote 2,568 Medicare Part D claims in 2024
In 2024, Maria Thelen wrote 2,568 Medicare Part D claims for 358 patients. 87% of them were for generic drugs.
Maria Thelen's Part D claims by kind of drug, 2024
- Generic2,226 claims87%
- Brand-name323 claims13%
- Other19 claims1%
Drug classes CMS tracks in Maria Thelen's Part D claims, 2024
- Opioids3%82 of 2,568 claims
- Antibiotics8%203 of 2,568 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 Maria A. Thelen takes part in Medicare
Maria Thelen 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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Maria A. Thelen received $39 in industry payments in 2025
CMS Open Payments shows 2 general payments to Maria Thelen from 2 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. Radius Health, Inc. paid the most, $23.
Companies that paid Maria Thelen 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 Maria A. Thelen'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 Maria A. Thelen
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Maria A. Thelen's NPI number?
Maria A. Thelen's NPI number is 1639115165. It was assigned on June 22, 2006, and it is active in the NPI Registry.
What does Maria A. Thelen specialize in?
Maria A. Thelen is a physician assistant in Grand Ledge, Michigan. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does Maria A. Thelen practice?
Maria Thelen practices at 1035 Charlevoix Dr, Grand Ledge, MI 48837. Maria Thelen's primary practice is David J. Smith MD in Grand Ledge, Michigan. Dmand AI also links Maria Thelen to 3 hospitals and 1 group practice or clinic.
What is Maria A. Thelen's office phone number?
The practice phone on file for Maria Thelen is (517) 627-2181.
What is Maria A. Thelen's medical license number?
Maria Thelen holds Michigan license 5601004441.
Which hospitals is Maria A. Thelen affiliated with?
Maria Thelen is affiliated with University of Michigan Health-Sparrow Lansing. Dmand AI links Maria Thelen to 3 more hospitals.
What medical group is Maria A. Thelen part of?
Maria Thelen is linked to Family Medicine of Michigan.
Does Maria A. Thelen accept Medicare?
Yes. CMS lists Maria Thelen as accepting Medicare assignment.
How many Medicare patients does Maria A. Thelen see?
CMS counts 109 Medicare patients who saw Maria Thelen in 2024, with an average age of 75.
Has Maria A. Thelen received payments from drug or device companies?
CMS Open Payments shows $39 in general payments to Maria Thelen from 2 companies from 2025 to 2025. The largest total came from Radius Health, Inc.
How long has Maria A. Thelen been practicing?
Maria Thelen graduated from medical school in 2004, 22 years ago.
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