Dr. Warren F. Lanphear, MD
- Medicare services, 2021
- 209
- Part D claims, 2024
- 36
- Industry payments
- $118
- Medical group
- 1
- State license
- 1
- Practice address
- 100 Michigan NE St, Grand Rapids, MI 49503
- Practice phone
- Call (616) 391-1774
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Spectrum Health Hospitals Butterworth Hospital
Grand Rapids, Michigan
Find Dr. Lanphear'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. Warren F. Lanphear is an emergency medicine physician in Grand Rapids, Michigan
Dr. Lanphear practices at Spectrum Health Hospitals Butterworth Hospital in Grand Rapids, Michigan.
Dr. Lanphear's NPI, 1891720025, was assigned on July 12, 2006. Dr. Lanphear holds Michigan license 4301047362.
- NPI
- 1891720025NPI Registry (opens in a new tab)
- NPI enumeration date
- July 12, 2006
- NPI status
- Active
- Practice phone
- (616) 391-1774
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Warren F. Lanphear practices at Spectrum Health Hospitals Butterworth Hospital in Grand Rapids, Michigan
Dr. Lanphear's primary practice is Spectrum Health Hospitals Butterworth Hospital, at 100 Michigan NE St, Grand Rapids, MI 49503 in Kent County. The practice phone is (616) 391-1774.
- Spectrum Health Hospitals Butterworth Hospital100 Michigan NE St, Grand Rapids, MI 49503 · Kent CountyPhone(616) 391-1774
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Warren F. Lanphear is affiliated with 1 site of care and 1 medical group
Dr. Lanphear's primary practice is Spectrum Health Hospitals Butterworth Hospital in Grand Rapids, Michigan. Dmand AI also links Dr. Lanphear to 1 medical group, 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. Warren F. Lanphear's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Lanphear practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Spectrum Health Hospitals Butterworth Hospital | Available with a free account |
| +1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Warren F. Lanphear is one of 2,045 emergency medicine physicians in Michigan
Emergency medicine is Dr. Lanphear's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Lanphear is licensed in Michigan.
Specialties and state licenses
- Emergency medicine, MichiganPrimary
Emergency medicine physicians near Dr. Lanphear
Counts of emergency 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. Warren F. Lanphear billed Medicare for 209 services in 2021
CMS data shows 209 Medicare services from Dr. Lanphear across 5 procedure codes in 2021. Medicare paid $20,477 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Lanphear's Medicare services by type, 2020 to 2021
- 2020
- 2021
- Office and hospital visits
- 2020: 1762021: 1609%
- Tests and treatments
- 2020: 522021: 496%
Dr. Lanphear compared with the Michigan median for emergency medicine physicians, 2021
- Dr. Lanphear
- Michigan median
- Medicare services
- 209vs 23411% below
- Part D claims
- 11vs 4676% below
Medians across 1,937 emergency medicine physicians in Michigan with Dmand AI profiles that report each measure.
Dr. Lanphear's most billed Medicare procedure codes, 2021
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. Lanphear and other emergency medicine physicians in Michigan.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Warren F. Lanphear wrote 36 Medicare Part D claims in 2024
In 2024, Dr. Lanphear wrote 36 Medicare Part D claims. 72% of them were for generic drugs. CMS names the drug for 11 of them, across 1 drug with 11 or more claims each, at $456 in total drug cost. In 2022, CMS named 11 claims across 1 drug.
Dr. Lanphear's Part D claims by kind of drug, 2024
- Generic26 claims72%
- Brand-name and other10 claims28%
Dr. Lanphear'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: 112023: 11No change
Drugs named by CMS: 1 in 2023, 1 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. Warren F. Lanphear received $118 in industry payments from 2021 to 2024
CMS Open Payments shows 2 general payments to Dr. Lanphear from 2 drug and device companies from 2021 to 2024. Food and beverage make up the largest share, 83% of the total. Inari Medical, Inc. paid the most, $98.
General payments to Dr. Lanphear by program year, 2021 to 2024
General payments to Dr. Lanphear by kind, 2021 to 2024
- Food and beverage$9883%
- Education$2017%
Companies that paid Dr. Lanphear the most, 2021 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Warren F. Lanphear'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 |
| 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) |
| 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. Warren F. Lanphear
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. Warren F. Lanphear's NPI number?
Dr. Warren F. Lanphear's NPI number is 1891720025. It was assigned on July 12, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Warren F. Lanphear?
Dr. Warren F. Lanphear is an emergency medicine physician in Grand Rapids, Michigan. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Warren F. Lanphear practice?
Dr. Lanphear practices at 100 Michigan NE St, Grand Rapids, MI 49503. Dr. Lanphear's primary practice is Spectrum Health Hospitals Butterworth Hospital in Grand Rapids, Michigan. Dmand AI also links Dr. Lanphear to 1 medical group.
What is Dr. Warren F. Lanphear's office phone number?
The practice phone on file for Dr. Lanphear is (616) 391-1774.
What is Dr. Warren F. Lanphear's medical license number?
Dr. Lanphear holds Michigan license 4301047362.
Does Dr. Warren F. Lanphear accept Medicare?
Yes. CMS data shows Dr. Lanphear billed Medicare for 209 services in 2021.
What services does Dr. Warren F. Lanphear bill to Medicare?
In 2021, Dr. Lanphear's most billed Medicare services were emergency department visit (99285), heart test or procedure (93010) and medical service (99220).
What drugs does Dr. Warren F. Lanphear prescribe most?
In 2023 Medicare Part D data, Dr. Lanphear's most prescribed drugs by claims were Albuterol Sulfate Hfa.
Has Dr. Warren F. Lanphear received payments from drug or device companies?
CMS Open Payments shows $118 in general payments to Dr. Lanphear from 2 companies from 2021 to 2024. The largest total came from Inari Medical, Inc.
How long has Dr. Warren F. Lanphear been practicing?
Dr. Lanphear's NPI was assigned in 2006.
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