Dr. Gregory G. Pierson, MD
- Medicare services, 2024
- 239
- Medicare patients, 2024
- 210
- Part D claims, 2024
- 98
- MIPS score, 2024
- 84
- Hospital affiliations
- 1
- Practice address
- 2 Crescent Park West, Warren, PA 16365
- Practice phone
- Call (814) 723-4973
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Pierson's professional email, personal email and mobile number
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Dr. Gregory G. Pierson is an emergency medicine physician in Warren, Pennsylvania
Dr. Pierson practices at Warren General Hospital in Warren, Pennsylvania, part of Warren General Hospital.
Dr. Pierson's NPI, 1578552873, was assigned on October 19, 2005. Dr. Pierson graduated from Lewis Katz School of Medicine at Temple University in 1986. Dr. Pierson holds Pennsylvania license MD046966L.
- NPI
- 1578552873NPI Registry (opens in a new tab)
- NPI enumeration date
- October 19, 2005
- NPI status
- Active
- Practice phone
- (814) 723-4973
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Medical school graduation
- 1986
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Gregory G. Pierson practices at Warren General Hospital in Warren, Pennsylvania
Dr. Pierson's primary practice is Warren General Hospital, at 2 Crescent Park West, Warren, PA 16365 in Warren County. The practice phone is (814) 723-4973.
- Warren General Hospital2 Crescent Park West, Warren, PA 16365 · Warren CountyPhone(814) 723-4973
Source: Dmand AI Affiliation Data
Dr. Gregory G. Pierson is affiliated with 2 sites of care and 2 medical groups
Dr. Pierson's primary practice is Warren General Hospital in Warren, Pennsylvania, part of Warren General Hospital. The medical group on file is UPMC Hamot. Dmand AI also links Dr. Pierson to 1 more dialysis center 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. Gregory G. Pierson's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Pierson practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Warren General Hospital | 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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Dmand AI maps EHR vendors, IT decision makers and buying committees across Warren General Hospital and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Gregory G. Pierson is one of 2,549 emergency medicine physicians in Pennsylvania
Emergency medicine is Dr. Pierson's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Pierson is licensed in Pennsylvania.
Specialties and state licenses
- Emergency medicine, PennsylvaniaPrimary
Emergency medicine physicians near Dr. Pierson
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. Gregory G. Pierson billed Medicare for 239 services in 2024
CMS data shows 239 Medicare services from Dr. Pierson across 4 procedure codes in 2024, for 210 Medicare patients. Medicare paid $27,002 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Pierson's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2542024: 2396%
Dr. Pierson compared with the Pennsylvania median for emergency medicine physicians, 2024
- Dr. Pierson
- Pennsylvania median
- Medicare services
- 239vs 243Close to median
- Medicare patients
- 210vs 23310% below
- Part D claims
- 35vs 4013% below
Medians across 2,501 emergency medicine physicians in Pennsylvania with Dmand AI profiles that report each measure.
Dr. Pierson'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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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Gregory G. Pierson treated 210 Medicare patients in 2024, average age 75
CMS counts 210 Medicare patients who saw Dr. Pierson in 2024. The largest group is 65 to 74, with 75 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 26% are also on Medicaid. Their average risk score is 1.61, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Pierson's median patient age at 40, with 55% women.
Dr. Pierson's Medicare patients by age, 2024
Dr. Pierson's Medicare patients by sex, 2024
- Women11555%
- Men9545%
Chronic conditions among Dr. Pierson's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis58%
- Mood disorders43%
- Anxiety41%
- Ischemic heart disease40%
- Depression39%
- Atrial fibrillation34%
Share of Medicare patients with each condition. A patient can have several.
Dr. Pierson's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 40
Patient panel by sex, all payers
- Women55%
- Men44%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Gregory G. Pierson wrote 98 Medicare Part D claims in 2024
In 2024, Dr. Pierson wrote 98 Medicare Part D claims for 75 patients. 96% of them were for generic drugs. CMS names the drug for 35 of them, across 2 drugs with 11 or more claims each, at $139 in total drug cost. In 2023, CMS named 60 claims across 3 drugs.
Dr. Pierson's Part D claims by kind of drug, 2024
- Generic94 claims96%
- Brand-name and other4 claims4%
Dr. Pierson'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 Dr. Pierson's Part D claims, 2024
- Antibiotics55%54 of 98 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 602024: 3542%
Drugs named by CMS: 2 in 2024, 3 in 2023.
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
Dr. Gregory G. Pierson scored 84 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 84 out of 100 for Dr. Pierson for performance year 2024, reported as part of a group.
Dr. Pierson's MIPS scores, performance year 2024
- 84of 100Final score
- 78.4of 100Quality
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Source: Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Gregory G. Pierson graduated from Lewis Katz School of Medicine at Temple University
Dr. Pierson graduated from Lewis Katz School of Medicine at Temple University in 1986.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Gregory G. Pierson'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 | Clinician Public Reporting: Overall MIPS Performance (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. Gregory G. Pierson
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. Gregory G. Pierson's NPI number?
Dr. Gregory G. Pierson's NPI number is 1578552873. It was assigned on October 19, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Gregory G. Pierson?
Dr. Gregory G. Pierson is an emergency medicine physician in Warren, Pennsylvania. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Gregory G. Pierson practice?
Dr. Pierson practices at 2 Crescent Park West, Warren, PA 16365. Dr. Pierson's primary practice is Warren General Hospital in Warren, Pennsylvania, part of Warren General Hospital. Dmand AI also links Dr. Pierson to 1 dialysis center and 1 medical group.
What is Dr. Gregory G. Pierson's office phone number?
The practice phone on file for Dr. Pierson is (814) 723-4973.
What is Dr. Gregory G. Pierson's medical license number?
Dr. Pierson holds Pennsylvania license MD046966L.
Which hospitals is Dr. Gregory G. Pierson affiliated with?
Dr. Pierson practices at Warren General Hospital in Warren, Pennsylvania.
What medical group is Dr. Gregory G. Pierson part of?
Dr. Pierson is linked to UPMC Hamot. Dmand AI links Dr. Pierson to 1 more medical group.
Does Dr. Gregory G. Pierson accept Medicare?
Yes. CMS data shows Dr. Pierson billed Medicare for 239 services in 2024.
What is Dr. Gregory G. Pierson's MIPS score?
Dr. Pierson's MIPS final score for performance year 2024 is 84 out of 100, reported as part of a group.
How many Medicare patients does Dr. Gregory G. Pierson see?
CMS counts 210 Medicare patients who saw Dr. Pierson in 2024, with an average age of 75.
Show 4 more questionsShow fewer questions
What services does Dr. Gregory G. Pierson bill to Medicare?
In 2024, Dr. Pierson's most billed Medicare services were emergency department visit (99285), emergency department visit (99284) and critical care (99291).
Where did Dr. Gregory G. Pierson go to medical school?
Dr. Pierson graduated from Lewis Katz School of Medicine at Temple University in 1986.
What drugs does Dr. Gregory G. Pierson prescribe most?
In 2024 Medicare Part D data, Dr. Pierson's most prescribed drugs by claims were Prednisone and Amoxicillin-Clavulanate Potass.
How long has Dr. Gregory G. Pierson been practicing?
Dr. Pierson graduated from medical school in 1986, 40 years ago.
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