Margaret E. Gruarin, PA-C
- Medicare services, 2024
- 86
- Medicare patients, 2024
- 73
- Part D claims, 2024
- 421
- Hospital affiliations
- 2
- Medical group
- 1
- Practice address
- 224 East Main Street, Springville, NY 14141
- Practice phone
- Call (716) 592-2871
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
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Margaret E. Gruarin is a physician assistant in Springville, New York
Margaret Gruarin practices at Bertrand Chaffee Hospital in Springville, New York, part of Kaleida Health.
Margaret Gruarin's NPI, 1518341882, was assigned on July 16, 2015. Margaret Gruarin holds New York license 018801.
- NPI
- 1518341882NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7517276868
- NPI enumeration date
- July 16, 2015
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (716) 592-2871
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 37
- Medical school graduation
- 2015
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Margaret E. Gruarin practices at Bertrand Chaffee Hospital in Springville, New York
Margaret Gruarin's primary practice is Bertrand Chaffee Hospital, at 224 East Main Street, Springville, NY 14141 in Erie County. The practice phone is (716) 592-2871.
- Bertrand Chaffee Hospital224 East Main Street, Springville, NY 14141 · Erie CountyPhone(716) 592-2871
Source: Dmand AI Affiliation Data
Margaret E. Gruarin is affiliated with 2 sites of care and 1 medical group
Margaret Gruarin's primary practice is Bertrand Chaffee Hospital in Springville, New York, part of Kaleida Health. Margaret Gruarin is also affiliated with Roswell Park Comprehensive Cancer Center. The medical group on file is Roswell Park Comprehensive Cancer Center.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Margaret E. Gruarin's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Margaret Gruarin practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Bertrand Chaffee Hospital | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Margaret E. Gruarin is one of 11,456 physician assistants in New York
Physician assistant is Margaret Gruarin's primary specialty in the NPI Registry, under taxonomy code 363A00000X. Margaret Gruarin is licensed in New York.
Specialties and state licenses
- Physician assistant, New YorkPrimary
Physician assistants near Margaret Gruarin
Counts of 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
Margaret E. Gruarin billed Medicare for 86 services in 2024
CMS data shows 86 Medicare services from Margaret Gruarin across 3 procedure codes in 2024, all of them office visits, for 73 Medicare patients. Medicare paid $4,641 for them.
Where Margaret Gruarin's Medicare services took place, 2024
- In an office1619%
- In a facility7081%
Margaret Gruarin compared with the New York median for physician assistants, 2024
- Margaret Gruarin
- New York median
- Medicare services
- 86vs 17651% below
- Medicare patients
- 73vs 786% below
- Part D claims
- 279vs 24514% above
Medians across 6,477 physician assistants in New York with Dmand AI profiles that report each measure.
Margaret Gruarin'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 Margaret Gruarin and other physician assistants in New York.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Margaret E. Gruarin treated 73 Medicare patients in 2024, average age 71
CMS counts 73 Medicare patients who saw Margaret Gruarin in 2024. The largest group is 65 to 74, with 37 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 22% are also on Medicaid. Their average risk score is 2.24, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Margaret Gruarin's median patient age at 69, with 90% women.
Margaret Gruarin's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Chronic conditions among Margaret Gruarin's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis51%
- Anxiety47%
- Cancer47%
- Mood disorders32%
- Depression29%
- Diabetes29%
Share of Medicare patients with each condition. A patient can have several.
Margaret Gruarin's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 69
Patient panel by sex, all payers
- Women90%
- Men9%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Margaret E. Gruarin wrote 421 Medicare Part D claims in 2024
In 2024, Margaret Gruarin wrote 421 Medicare Part D claims for 153 patients. 81% of them were for generic drugs. CMS names the drug for 279 of them, across 11 drugs with 11 or more claims each, at $385,136 in total drug cost.
Margaret Gruarin's Part D claims by kind of drug, 2024
- Generic343 claims81%
- Brand-name78 claims19%
Margaret Gruarin'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 Margaret Gruarin's Part D claims, 2024
- Opioids5%20 of 421 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
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
How Margaret E. Gruarin takes part in Medicare
Margaret Gruarin accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Sources for Margaret E. Gruarin'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 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) |
| 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 Margaret E. Gruarin
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Margaret E. Gruarin's NPI number?
Margaret E. Gruarin's NPI number is 1518341882. It was assigned on July 16, 2015, and it is active in the NPI Registry.
What does Margaret E. Gruarin specialize in?
Margaret E. Gruarin is a physician assistant in Springville, New York. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does Margaret E. Gruarin practice?
Margaret Gruarin practices at 224 East Main Street, Springville, NY 14141. Margaret Gruarin's primary practice is Bertrand Chaffee Hospital in Springville, New York, part of Kaleida Health.
What is Margaret E. Gruarin's office phone number?
The practice phone on file for Margaret Gruarin is (716) 592-2871.
What is Margaret E. Gruarin's medical license number?
Margaret Gruarin holds New York license 018801.
Which hospitals is Margaret E. Gruarin affiliated with?
Margaret Gruarin practices at Bertrand Chaffee Hospital in Springville, New York. Margaret Gruarin is also affiliated with Roswell Park Comprehensive Cancer Center.
What medical group is Margaret E. Gruarin part of?
Margaret Gruarin is linked to Roswell Park Comprehensive Cancer Center.
Does Margaret E. Gruarin accept Medicare?
Yes. CMS data shows Margaret Gruarin billed Medicare for 86 services in 2024, and Margaret Gruarin accepts Medicare assignment.
How many Medicare patients does Margaret E. Gruarin see?
CMS counts 73 Medicare patients who saw Margaret Gruarin in 2024, with an average age of 71.
What services does Margaret E. Gruarin bill to Medicare?
In 2024, Margaret Gruarin's most billed Medicare services were office visit, established patient (99213), office visit, established patient (99214) and office visit, established patient (99215).
What drugs does Margaret E. Gruarin prescribe most?
In 2024 Medicare Part D data, Margaret Gruarin's most prescribed drugs by claims were Gabapentin, Duloxetine HCl and Prochlorperazine Maleate.
How long has Margaret E. Gruarin been practicing?
Margaret Gruarin graduated from medical school in 2015, 11 years ago.
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