Dr. Peter G. Grain, MD
- Medicare services, 2019
- 12
- Part D claims, 2019
- 12
- Hospital affiliations
- 1
- Industry payments
- $1,066
- Medical group
- 1
- Practice address
- 2601 Electric Avenue, Port Huron, MI 48060
- Practice phone
- Call (810) 985-1500
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Grain'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. Peter G. Grain is a neurosurgeon in Port Huron, Michigan
Dr. Grain practices at Lake Huron Medical Center in Port Huron, Michigan, part of Prime Healthcare Services.
Dr. Grain's NPI, 1780664573, was assigned on January 19, 2006. Dr. Grain graduated from Stanford University School of Medicine in 1981. Dr. Grain holds Michigan license 4301069603.
- NPI
- 1780664573NPI Registry (opens in a new tab)
- NPI enumeration date
- January 19, 2006
- NPI status
- Active
- Practice phone
- (810) 985-1500
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 71
- Medical school graduation
- 1981
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Peter G. Grain practices at Lake Huron Medical Center in Port Huron, Michigan
Dr. Grain's primary practice is Lake Huron Medical Center, at 2601 Electric Avenue, Port Huron, MI 48060 in St. Clair County. The practice phone is (810) 985-1500.
- Lake Huron Medical Center2601 Electric Avenue, Port Huron, MI 48060 · St. Clair CountyPhone(810) 985-1500
Source: Dmand AI Affiliation Data
Dr. Peter G. Grain is affiliated with 2 sites of care and 1 medical group
Dr. Grain's primary practice is Lake Huron Medical Center in Port Huron, Michigan, part of Prime Healthcare Services. Dmand AI also links Dr. Grain to 1 group practice or clinic and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Peter G. Grain's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Grain practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Lake Huron Medical Center | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Peter G. Grain is one of 256 neurosurgeons in Michigan
Neurological surgery is Dr. Grain's primary specialty in the NPI Registry, under taxonomy code 207T00000X. Dr. Grain is licensed in Michigan.
Specialties and state licenses
- Neurological surgery, MichiganPrimary
Neurosurgeons near Dr. Grain
Counts of neurosurgeons 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. Peter G. Grain billed Medicare for 12 services in 2019
CMS data shows 12 Medicare services from Dr. Grain across 1 procedure code in 2019, all of them office visits. Medicare paid $1,634 for them. Every service was in an office.
Dr. Grain's Medicare services by type, 2018 to 2019
- 2018
- 2019
- Office and hospital visits
- 2018: 152019: 1220%
Dr. Grain compared with the Michigan median for neurosurgeons, 2019
- Dr. Grain
- Michigan median
- Medicare services
- 12vs 16293% below
- Part D claims
- 12vs 3364% below
Medians across 219 neurosurgeons in Michigan with Dmand AI profiles that report each measure.
Dr. Grain's most billed Medicare procedure codes, 2019
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. Grain and other neurosurgeons in Michigan.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Peter G. Grain's patients have a median age of 42
Across all payers, Dmand AI patient panel data puts Dr. Grain's median patient age at 42, with 56% women.
Dr. Grain's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 42
Patient panel by sex, all payers
- Women56%
- Men44%
Source: Dmand AI Patient Panel Data
Dr. Peter G. Grain wrote 12 Medicare Part D claims in 2019
In 2019, Dr. Grain wrote 12 Medicare Part D claims. Every claim was for a generic drug. They cover 1 drug, with $51 in total drug cost. In 2016, CMS named 61 claims across 3 drugs.
Dr. Grain's most prescribed drugs by claims, 2019
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, 2016 to 2019
- 2016
- 2019
- Claims for drugs CMS names
- 2016: 612019: 1280%
Drugs named by CMS: 1 in 2019, 3 in 2016.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. Peter G. Grain received $1,066 in industry payments from 2016 to 2018
CMS Open Payments shows 15 general payments to Dr. Grain from 5 drug and device companies from 2016 to 2018. Travel and lodging make up the largest share, 67% of the total. Zimmer Biomet Holdings, Inc. paid the most, $1,003.
General payments to Dr. Grain by program year, 2016 to 2018
General payments to Dr. Grain by kind, 2016 to 2018
- Travel and lodging$71067%
- Food and beverage$35633%
Companies that paid Dr. Grain the most, 2016 to 2018
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Peter G. Grain graduated from Stanford University School of Medicine
Dr. Grain graduated from Stanford University School of Medicine in 1981.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Peter G. Grain'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 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) |
| 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. Peter G. Grain
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. Peter G. Grain's NPI number?
Dr. Peter G. Grain's NPI number is 1780664573. It was assigned on January 19, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Peter G. Grain?
Dr. Peter G. Grain is a neurosurgeon in Port Huron, Michigan. The primary specialty in the NPI Registry is Neurological Surgery Physician (taxonomy code 207T00000X).
Where does Dr. Peter G. Grain practice?
Dr. Grain practices at 2601 Electric Avenue, Port Huron, MI 48060. Dr. Grain's primary practice is Lake Huron Medical Center in Port Huron, Michigan, part of Prime Healthcare Services. Dmand AI also links Dr. Grain to 1 group practice or clinic and 1 medical group.
What is Dr. Peter G. Grain's office phone number?
The practice phone on file for Dr. Grain is (810) 985-1500.
What is Dr. Peter G. Grain's medical license number?
Dr. Grain holds Michigan license 4301069603.
Which hospitals is Dr. Peter G. Grain affiliated with?
Dr. Grain practices at Lake Huron Medical Center in Port Huron, Michigan.
Does Dr. Peter G. Grain accept Medicare?
Yes. CMS data shows Dr. Grain billed Medicare for 12 services in 2019.
What services does Dr. Peter G. Grain bill to Medicare?
In 2019, Dr. Grain's most billed Medicare services were office visit, new patient (99205).
Where did Dr. Peter G. Grain go to medical school?
Dr. Grain graduated from Stanford University School of Medicine in 1981.
What drugs does Dr. Peter G. Grain prescribe most?
In 2019 Medicare Part D data, Dr. Grain's most prescribed drugs by claims were Diazepam.
Has Dr. Peter G. Grain received payments from drug or device companies?
CMS Open Payments shows $1,066 in general payments to Dr. Grain from 5 companies from 2016 to 2018. The largest total came from Zimmer Biomet Holdings, Inc.
How long has Dr. Peter G. Grain been practicing?
Dr. Grain graduated from medical school in 1981, 45 years ago.
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