Dr. Robert D. Holwerda, DO
- Medicare services, 2022
- 44
- Part D claims, 2024
- 15
- Industry payments
- $68
- Medical group
- 1
- State license
- 1
- Practice address
- 1215 E Michigan Ave, Lansing, MI 48912
- Practice phone
- Call (517) 364-6000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
UM Health-Sparrow Lansing Campus
Lansing, Michigan
Find Dr. Holwerda'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. Robert D. Holwerda is a psychiatrist in Lansing, Michigan
Dr. Holwerda practices at UM Health-Sparrow Lansing Campus in Lansing, Michigan.
Dr. Holwerda's NPI, 1205995735, was assigned on December 8, 2006. Dr. Holwerda graduated from Michigan State University College of Osteopathic Medicine in 1987. Dr. Holwerda holds Michigan license 5101009935.
- NPI
- 1205995735NPI Registry (opens in a new tab)
- NPI enumeration date
- December 8, 2006
- NPI status
- Active
- Practice phone
- (517) 364-6000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 65
- Medical school graduation
- 1987
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Robert D. Holwerda practices at UM Health-Sparrow Lansing Campus in Lansing, Michigan
Dr. Holwerda's primary practice is UM Health-Sparrow Lansing Campus, at 1215 E Michigan Ave, Lansing, MI 48912 in Ingham County. The practice phone is (517) 364-6000.
- UM Health-Sparrow Lansing Campus1215 E Michigan Ave, Lansing, MI 48912 · Ingham CountyPhone(517) 364-6000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Robert D. Holwerda is affiliated with 1 site of care and 1 medical group
Dr. Holwerda's primary practice is UM Health-Sparrow Lansing Campus in Lansing, Michigan. The medical group on file is Network180.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Robert D. Holwerda's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Holwerda practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| UM Health-Sparrow Lansing Campus | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Robert D. Holwerda is one of 1,337 psychiatrists in Michigan
Psychiatry is Dr. Holwerda's primary specialty in the NPI Registry, under taxonomy code 2084P0800X. Dr. Holwerda is licensed in Michigan.
Specialties and state licenses
- Psychiatry, MichiganPrimary
Psychiatrists near Dr. Holwerda
Counts of psychiatrists 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. Robert D. Holwerda billed Medicare for 44 services in 2022
CMS data shows 44 Medicare services from Dr. Holwerda across 2 procedure codes in 2022, all of them office visits. Medicare paid $1,903 for them. Every service was in an office.
Dr. Holwerda's Medicare services by type, 2019 to 2022
- 2019
- 2022
- Office and hospital visits
- 2019: 2062022: 4479%
Dr. Holwerda compared with the Michigan median for psychiatrists, 2022
- Dr. Holwerda
- Michigan median
- Medicare services
- 44vs 14770% below
- Part D claims
- 188vs 21513% below
Medians across 1,367 psychiatrists in Michigan with Dmand AI profiles that report each measure.
Dr. Holwerda's most billed Medicare procedure codes, 2022
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. Holwerda and other psychiatrists in Michigan.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Robert D. Holwerda's patients have a median age of 43
Across all payers, Dmand AI patient panel data puts Dr. Holwerda's median patient age at 43, with 100% women.
Dr. Holwerda's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 43
Patient panel by sex, all payers
- Women100%
- Men0%
Source: Dmand AI Patient Panel Data
Dr. Robert D. Holwerda wrote 15 Medicare Part D claims in 2024
In 2024, Dr. Holwerda wrote 15 Medicare Part D claims. 100% of them were for generic drugs. They cover 10 drugs, with $5,575 in total drug cost. In 2022, CMS named 785 claims across 28 drugs.
Dr. Holwerda's most prescribed drugs by claims, 2023
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2022 to 2023
- 2022
- 2023
- Claims for drugs CMS names
- 2022: 7852023: 18876%
Drugs named by CMS: 10 in 2023, 28 in 2022.
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
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Dr. Robert D. Holwerda received $68 in industry payments from 2016 to 2019
CMS Open Payments shows 4 general payments to Dr. Holwerda from 3 drug and device companies from 2016 to 2019. Food and beverage make up the largest share, 100% of the total. Teva Pharmaceuticals USA, Inc. paid the most, $33.
General payments to Dr. Holwerda by program year, 2016 to 2019
Companies that paid Dr. Holwerda the most, 2016 to 2019
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Robert D. Holwerda graduated from Michigan State University College of Osteopathic Medicine
Dr. Holwerda graduated from Michigan State University College of Osteopathic Medicine in 1987.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Robert D. Holwerda'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 Data |
| 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) |
| 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. Robert D. Holwerda
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What is Dr. Robert D. Holwerda's NPI number?
Dr. Robert D. Holwerda's NPI number is 1205995735. It was assigned on December 8, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Robert D. Holwerda?
Dr. Robert D. Holwerda is a psychiatrist in Lansing, Michigan. The primary specialty in the NPI Registry is Psychiatry Physician (taxonomy code 2084P0800X).
Where does Dr. Robert D. Holwerda practice?
Dr. Holwerda practices at 1215 E Michigan Ave, Lansing, MI 48912. Dr. Holwerda's primary practice is UM Health-Sparrow Lansing Campus in Lansing, Michigan.
What is Dr. Robert D. Holwerda's office phone number?
The practice phone on file for Dr. Holwerda is (517) 364-6000.
What is Dr. Robert D. Holwerda's medical license number?
Dr. Holwerda holds Michigan license 5101009935.
What medical group is Dr. Robert D. Holwerda part of?
Dr. Holwerda is linked to Network180.
Does Dr. Robert D. Holwerda accept Medicare?
Yes. CMS data shows Dr. Holwerda billed Medicare for 44 services in 2022.
What services does Dr. Robert D. Holwerda bill to Medicare?
In 2022, Dr. Holwerda's most billed Medicare services were office visit, established patient (99212) and office visit, established patient (99213).
Where did Dr. Robert D. Holwerda go to medical school?
Dr. Holwerda graduated from Michigan State University College of Osteopathic Medicine in 1987.
What drugs does Dr. Robert D. Holwerda prescribe most?
In 2023 Medicare Part D data, Dr. Holwerda's most prescribed drugs by claims were Risperidone, Sertraline HCl and Benztropine Mesylate.
Has Dr. Robert D. Holwerda received payments from drug or device companies?
CMS Open Payments shows $68 in general payments to Dr. Holwerda from 3 companies from 2016 to 2019. The largest total came from Teva Pharmaceuticals USA, Inc.
How long has Dr. Robert D. Holwerda been practicing?
Dr. Holwerda graduated from medical school in 1987, 39 years ago.
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