Nathaniel S. Gregoire
- Medicare patients, 2024
- 183
- Part D claims, 2024
- 221
- MIPS score, 2024
- 89
- Hospital affiliations
- 3
- Medical groups
- 4
- Practice address
- 800 N 1st St, Springfield, IL 62702
- Practice phone
- Call (217) 528-7541
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Springfield Clinic Physical Therapy - Springfield Clinic 1st - 800 Building
Physical Therapy Clinic · Springfield, Illinois
Find Nathaniel Gregoire'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.
Nathaniel S. Gregoire is a surgical physician assistant in Springfield, Illinois
Nathaniel Gregoire practices at Springfield Clinic Physical Therapy - Springfield Clinic 1st - 800 Building in Springfield, Illinois.
Nathaniel Gregoire's NPI, 1477956811, was assigned on September 30, 2014. Nathaniel Gregoire holds Illinois license 085005246.
- NPI
- 1477956811NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0840412383
- NPI enumeration date
- September 30, 2014
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (217) 528-7541
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 38
- Medical school graduation
- 2014
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Nathaniel S. Gregoire practices at Springfield Clinic Physical Therapy - Springfield Clinic 1st - 800 Building in Springfield, Illinois
Nathaniel Gregoire's primary practice is Springfield Clinic Physical Therapy - Springfield Clinic 1st - 800 Building, at 800 N 1st St, Springfield, IL 62702. The practice phone is (217) 528-7541.
- Springfield Clinic Physical Therapy - Springfield Clinic 1st - 800 Building800 N 1st St, Springfield, IL 62702Phone(217) 528-7541
Source: Dmand AI Affiliation Data
Nathaniel S. Gregoire is affiliated with 7 sites of care and 4 medical groups
Nathaniel Gregoire's primary practice is Springfield Clinic Physical Therapy - Springfield Clinic 1st - 800 Building in Springfield, Illinois. Nathaniel Gregoire is also affiliated with HSHS St. John's Hospital. The medical group on file is Springfield Clinic. Dmand AI also links Nathaniel Gregoire to 2 more hospitals, 3 group practices and clinics and 3 medical groups, each named with a free account. Nathaniel Gregoire's employer is on file too: a physical therapy & rehab clinic.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Nathaniel S. Gregoire's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Nathaniel Gregoire practices, 7 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Springfield Clinic Physical Therapy - Springfield Clinic 1st - 800 Building | Available with a free account |
| +6 more sites and 3 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Nathaniel S. Gregoire is one of 468 surgical physician assistants in Illinois
Surgical is Nathaniel Gregoire's primary specialty in the NPI Registry, under taxonomy code 363AS0400X. Nathaniel Gregoire is licensed in Illinois.
Specialties and state licenses
- Surgical physician assistant, IllinoisPrimary
Surgical physician assistants near Nathaniel Gregoire
Counts of surgical 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
Nathaniel S. Gregoire treated 183 Medicare patients in 2024, average age 73
CMS counts 183 Medicare patients who saw Nathaniel Gregoire in 2024. The largest group is 65 to 74, with 92 patients. 75% of them have arthritis, and 75% have high blood pressure. 11% are also on Medicaid. Their average risk score is 0.99, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Nathaniel Gregoire's median patient age at 60, with 56% women.
Nathaniel Gregoire's Medicare patients by age, 2024
Nathaniel Gregoire's Medicare patients by sex, 2024
- Women9552%
- Men8848%
Chronic conditions among Nathaniel Gregoire's Medicare patients, 2024
- Arthritis75%
- High blood pressure75%
- High cholesterol75%
- Ischemic heart disease34%
- Diabetes27%
- Chronic kidney disease20%
- Cancer19%
- Mood disorders17%
Share of Medicare patients with each condition. A patient can have several.
Nathaniel Gregoire's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 60
Patient panel by sex, all payers
- Women56%
- Men44%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Nathaniel S. Gregoire wrote 221 Medicare Part D claims in 2024
In 2024, Nathaniel Gregoire wrote 221 Medicare Part D claims for 134 patients. 100% of them were for generic drugs.
Drug classes CMS tracks in Nathaniel Gregoire's Part D claims, 2024
- Opioids53%117 of 221 claims
- Antibiotics8%17 of 221 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
Nathaniel S. Gregoire scored 89 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 89 out of 100 for Nathaniel Gregoire for performance year 2024, reported through an alternative payment model (APM). Nathaniel Gregoire accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Nathaniel Gregoire's MIPS scores, performance year 2024
- 89of 100Final score
- 75.6of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Sources for Nathaniel S. Gregoire'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 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)Clinician Public Reporting: Overall MIPS Performance (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 Nathaniel S. Gregoire
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Nathaniel S. Gregoire's NPI number?
Nathaniel S. Gregoire's NPI number is 1477956811. It was assigned on September 30, 2014, and it is active in the NPI Registry.
What does Nathaniel S. Gregoire specialize in?
Nathaniel S. Gregoire is a surgical physician assistant in Springfield, Illinois. The primary specialty in the NPI Registry is Surgical Physician Assistant (taxonomy code 363AS0400X).
Where does Nathaniel S. Gregoire practice?
Nathaniel Gregoire practices at 800 N 1st St, Springfield, IL 62702. Nathaniel Gregoire's primary practice is Springfield Clinic Physical Therapy - Springfield Clinic 1st - 800 Building in Springfield, Illinois. Dmand AI also links Nathaniel Gregoire to 2 hospitals, 3 group practices and clinics and 3 medical groups.
What is Nathaniel S. Gregoire's office phone number?
The practice phone on file for Nathaniel Gregoire is (217) 528-7541.
What is Nathaniel S. Gregoire's medical license number?
Nathaniel Gregoire holds Illinois license 085005246.
Which hospitals is Nathaniel S. Gregoire affiliated with?
Nathaniel Gregoire is affiliated with HSHS St. John's Hospital. Dmand AI links Nathaniel Gregoire to 2 more hospitals.
What medical group is Nathaniel S. Gregoire part of?
Nathaniel Gregoire is linked to Springfield Clinic. Dmand AI links Nathaniel Gregoire to 3 more medical groups.
Does Nathaniel S. Gregoire accept Medicare?
Yes. CMS lists Nathaniel Gregoire as accepting Medicare assignment.
What is Nathaniel S. Gregoire's MIPS score?
Nathaniel Gregoire's MIPS final score for performance year 2024 is 89 out of 100, reported through an alternative payment model (APM).
How many Medicare patients does Nathaniel S. Gregoire see?
CMS counts 183 Medicare patients who saw Nathaniel Gregoire in 2024, with an average age of 73.
How long has Nathaniel S. Gregoire been practicing?
Nathaniel Gregoire graduated from medical school in 2014, 12 years ago.
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