Dr. Chandra R. Weimer, DO
- Medicare services, 2024
- 184
- Medicare patients, 2024
- 75
- Part D claims, 2024
- 4,333
- Hospital affiliations
- 2
- Industry payments
- $56
- Practice address
- 2909 E Grand River Ave, Lansing, MI 48912
- Practice phone
- Call (517) 364-8680
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Sparrow Medical Group North
Lansing, Michigan
Find Dr. Weimer'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. Chandra R. Weimer is a family medicine physician in Lansing, Michigan
Dr. Weimer practices at Sparrow Medical Group North in Lansing, Michigan.
Dr. Weimer's NPI, 1619918281, was assigned on June 8, 2006. Dr. Weimer holds Michigan license 5101015733.
- NPI
- 1619918281NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7214940022
- NPI enumeration date
- June 8, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (517) 364-8680
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 49
- Medical school graduation
- 2003
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Chandra R. Weimer practices at Sparrow Medical Group North in Lansing, Michigan
Dr. Weimer's primary practice is Sparrow Medical Group North, at 2909 E Grand River Ave, Lansing, MI 48912 in Ingham County. The practice phone is (517) 364-8680.
- Sparrow Medical Group North2909 E Grand River Ave, Lansing, MI 48912 · Ingham CountyPhone(517) 364-8680
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Chandra R. Weimer is affiliated with 4 sites of care and 1 medical group
Dr. Weimer's primary practice is Sparrow Medical Group North in Lansing, Michigan. Dr. Weimer is also affiliated with University of Michigan Health-Sparrow Lansing. The medical group on file is University of Michigan Health-Sparrow. Dmand AI also links Dr. Weimer to 1 more hospital 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 Dr. Chandra R. Weimer's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Weimer practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Sparrow Medical Group North | Available with a free account |
| +3 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Chandra R. Weimer is one of 4,931 family medicine physicians in Michigan
Family medicine is Dr. Weimer's primary specialty in the NPI Registry, under taxonomy code 207Q00000X. Dr. Weimer is licensed in Michigan.
Specialties and state licenses
- Family medicine, MichiganPrimary
Family medicine physicians near Dr. Weimer
Counts of family medicine physicians 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. Chandra R. Weimer billed Medicare for 184 services in 2024
CMS data shows 184 Medicare services from Dr. Weimer across 3 procedure codes in 2024, for 75 Medicare patients. Medicare paid $11,015 for them. Every service was in an office.
Dr. Weimer's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1432024: 10824%
- Other services
- 2023: 322024: 76138%
Dr. Weimer compared with the Michigan median for family medicine physicians, 2024
- Dr. Weimer
- Michigan median
- Medicare services
- 184vs 24826% below
- Medicare patients
- 75vs 11233% below
- Part D claims
- 3,651vs 1,0333.5 times
Medians across 4,990 family medicine physicians in Michigan with Dmand AI profiles that report each measure.
Dr. Weimer'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. Weimer and other family medicine physicians in Michigan.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Chandra R. Weimer treated 75 Medicare patients in 2024, average age 71
CMS counts 75 Medicare patients who saw Dr. Weimer in 2024. The largest group is 65 to 74, with 37 patients. 61% of them have high blood pressure, and 59% have high cholesterol. Their average risk score is 0.97, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Weimer's median patient age at 54, with 68% women.
Dr. Weimer's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Weimer's Medicare patients by sex, 2024
- Women5877%
- Men1723%
Chronic conditions among Dr. Weimer's Medicare patients, 2024
- High blood pressure61%
- High cholesterol59%
- Arthritis49%
- Anxiety35%
- Mood disorders32%
- Depression29%
- Diabetes28%
- Chronic kidney disease21%
Share of Medicare patients with each condition. A patient can have several.
Dr. Weimer's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 54
Patient panel by sex, all payers
- Women68%
- Men31%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Chandra R. Weimer wrote 4,333 Medicare Part D claims in 2024
In 2024, Dr. Weimer wrote 4,333 Medicare Part D claims for 348 patients. 89% of them were for generic drugs. CMS names the drug for 3,651 of them, across 92 drugs with 11 or more claims each, at $241,263 in total drug cost. In 2023, CMS named 3,618 claims across 89 drugs.
Dr. Weimer's Part D claims by kind of drug, 2024
- Generic3,849 claims89%
- Brand-name457 claims11%
- Other27 claims1%
Dr. Weimer'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. Weimer's Part D claims, 2024
- Opioids3%140 of 4,333 claims
- Antibiotics1%60 of 4,333 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: 3,6182024: 3,6511%
Drugs named by CMS: 92 in 2024, 89 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. Chandra R. Weimer offers telehealth to Medicare patients
Dr. Weimer accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Weimer as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Chandra R. Weimer received $56 in industry payments from 2021 to 2025
CMS Open Payments shows 3 general payments to Dr. Weimer from 3 drug and device companies from 2021 to 2025. Food and beverage make up the largest share, 100% of the total. Phadia US Inc. paid the most, $20.
General payments to Dr. Weimer by program year, 2021 to 2025
Companies that paid Dr. Weimer the most, 2021 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Chandra R. Weimer'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) |
| 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 Dr. Chandra R. Weimer
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. Chandra R. Weimer's NPI number?
Dr. Chandra R. Weimer's NPI number is 1619918281. It was assigned on June 8, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Chandra R. Weimer?
Dr. Chandra R. Weimer is a family medicine physician in Lansing, Michigan. The primary specialty in the NPI Registry is Family Medicine Physician (taxonomy code 207Q00000X).
Where does Dr. Chandra R. Weimer practice?
Dr. Weimer practices at 2909 E Grand River Ave, Lansing, MI 48912. Dr. Weimer's primary practice is Sparrow Medical Group North in Lansing, Michigan. Dmand AI also links Dr. Weimer to 1 hospital and 1 group practice or clinic.
What is Dr. Chandra R. Weimer's office phone number?
The practice phone on file for Dr. Weimer is (517) 364-8680.
What is Dr. Chandra R. Weimer's medical license number?
Dr. Weimer holds Michigan license 5101015733.
Which hospitals is Dr. Chandra R. Weimer affiliated with?
Dr. Weimer is affiliated with University of Michigan Health-Sparrow Lansing. Dmand AI links Dr. Weimer to 1 more hospital.
What medical group is Dr. Chandra R. Weimer part of?
Dr. Weimer is linked to University of Michigan Health-Sparrow.
Does Dr. Chandra R. Weimer accept Medicare?
Yes. CMS data shows Dr. Weimer billed Medicare for 184 services in 2024, and Dr. Weimer accepts Medicare assignment.
Does Dr. Chandra R. Weimer offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Weimer as offering telehealth services.
How many Medicare patients does Dr. Chandra R. Weimer see?
CMS counts 75 Medicare patients who saw Dr. Weimer in 2024, with an average age of 71.
Show 4 more questionsShow fewer questions
What services does Dr. Chandra R. Weimer bill to Medicare?
In 2024, Dr. Weimer's most billed Medicare services were office visit, established patient (99214), medicare service (G2211) and medicare service (G0439).
What drugs does Dr. Chandra R. Weimer prescribe most?
In 2024 Medicare Part D data, Dr. Weimer's most prescribed drugs by claims were Levothyroxine Sodium, Atorvastatin Calcium and Lisinopril.
Has Dr. Chandra R. Weimer received payments from drug or device companies?
CMS Open Payments shows $56 in general payments to Dr. Weimer from 3 companies from 2021 to 2025. The largest total came from Phadia US Inc.
How long has Dr. Chandra R. Weimer been practicing?
Dr. Weimer graduated from medical school in 2003, 23 years ago.
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