Dr. Patrick J. Erwin, MD

  • Danville, PA
  • General surgeon
NPI1326017112PAC ID3678475498
Medicare services, 2024
524
Medicare patients, 2026
340
Part D claims, 2026
104
Hospital affiliations
2
Industry payments
$64
Practice address
100 North Academy Avenue, Danville, PA 17822
Practice phone
Call (570) 271-6211
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Geisinger Medical Center

Hospital · Danville, Pennsylvania

See all 5 affiliations

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Dr. Patrick J. Erwin is a general surgeon in Danville, Pennsylvania

Dr. Erwin practices at Geisinger Medical Center in Danville, Pennsylvania, part of Risant Health.

Dr. Erwin's NPI, 1326017112, was assigned on March 15, 2006. Dr. Erwin graduated from Rutgers New Jersey Medical School in 1988. Dr. Erwin holds Pennsylvania license MD048606L.

NPI and contact details
Medicare PAC ID
3678475498
NPI enumeration date
March 15, 2006
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(570) 271-6211
Professional email
Get email
Personal email
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Mobile number
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Sex
Male
Estimated age
64
Medical school graduation
1988

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Patrick J. Erwin practices at Geisinger Medical Center in Danville, Pennsylvania

Dr. Erwin's primary practice is Geisinger Medical Center, at 100 North Academy Avenue, Danville, PA 17822 in Montour County. The practice phone is (570) 271-6211.

Source: Dmand AI Affiliation Data

Dr. Patrick J. Erwin is affiliated with 3 sites of care and 2 medical groups

Dr. Erwin's primary practice is Geisinger Medical Center in Danville, Pennsylvania, part of Risant Health. Dr. Erwin is also affiliated with Geisinger Bloomsburg Hospital. The medical group on file is Geisinger. Dmand AI also links Dr. Erwin to 1 more group practice or clinic and 1 medical group, each named with a free account.

See all 5 affiliations for Dr. Erwin

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Patrick J. Erwin's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Erwin practices, 3 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Geisinger Medical CenterAvailable with a free account
+2 more sites and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Patrick J. Erwin is one of 1,398 general surgeons in Pennsylvania

Surgery is Dr. Erwin's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Erwin is licensed in Pennsylvania.

Specialties and state licenses

  • Surgery, PennsylvaniaPrimaryLicense MD048606L · taxonomy 208600000X

General surgeons near Dr. Erwin

Counts of general surgeons 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. Patrick J. Erwin billed Medicare for 524 services in 2024

CMS data shows 524 Medicare services from Dr. Erwin across 16 procedure codes in 2024, for 340 Medicare patients. Medicare paid $50,777 for them.

Medicare services, 2024524
Medicare patients340
Paid by Medicare$50,777
Procedure codes16

Dr. Erwin's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 3572024: 3346%
Surgery
2023: 962024: 15966%
Other services
2023: 372024: 3116%

Where Dr. Erwin's Medicare services took place, 2024

  • In an office24447%
  • In a facility28053%

Dr. Erwin compared with the Pennsylvania median for general surgeons, 2024

  • Dr. Erwin
  • Pennsylvania median
Medicare services
524vs 1583.3 times
Medicare patients
340vs 1272.7 times
Part D claims
60vs 292.1 times

Medians across 1,213 general surgeons in Pennsylvania with Dmand AI profiles that report each measure.

Dr. Erwin'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.

See all procedures by Dr. Erwin

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Patrick J. Erwin treated 340 Medicare patients in 2026, average age 73

CMS counts 340 Medicare patients who saw Dr. Erwin in 2026. The largest group is 65 to 74, with 198 patients. 75% of them have high blood pressure, and 70% have high cholesterol. 11% are also on Medicaid. Their average risk score is 1.15, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Erwin's median patient age at 73, with 61% women.

Medicare patients, 2026340
Average age73
Average risk score1.15
Also on Medicaid11%

Dr. Erwin's Medicare patients by age, 2026

Dr. Erwin's Medicare patients by sex, 2026

  • Women19256%
  • Men14844%

Chronic conditions among Dr. Erwin's Medicare patients, 2026

  1. High blood pressure75%
  2. High cholesterol70%
  3. Arthritis37%
  4. Chronic kidney disease29%
  5. Diabetes29%
  6. Cancer26%
  7. Anxiety23%
  8. Mood disorders21%

Share of Medicare patients with each condition. A patient can have several.

Dr. Erwin's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 73

Patient panel by sex, all payers

  • Women61%
  • Men39%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2026 data

Dr. Patrick J. Erwin wrote 104 Medicare Part D claims in 2026

In 2026, Dr. Erwin wrote 104 Medicare Part D claims for 63 patients. 99% of them were for generic drugs. CMS names the drug for 60 of them, across 3 drugs with 11 or more claims each, at $690 in total drug cost. In 2023, CMS named 22 claims across 1 drug.

Part D claims, 2026104
Drugs named by CMS3
Total drug cost$690
Part D patients63

Dr. Erwin's Part D claims by kind of drug, 2026

  • Generic103 claims99%
  • Brand-name and other1 claims1%

Dr. Erwin'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. Erwin's Part D claims, 2026

  • Opioids25%26 of 104 claims
  • Antibiotics15%16 of 104 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: 222024: 60173%

Drugs named by CMS: 3 in 2024, 1 in 2023.

See all prescribing by Dr. Erwin

Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2026 data

Dr. Patrick J. Erwin ranks in the 77th percentile for colonoscopy in Medicare

Dr. Erwin accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Erwin as offering telehealth. CMS counts 89 procedures of colonoscopy by Dr. Erwin, more than 77% of the clinicians it reports for that procedure.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Where Dr. Erwin ranks in Medicare procedure volume

Colonoscopy
77th percentile89 procedures
Upper gastrointestinal (GI) endoscopy for acid reflux
56th percentile31 procedures

CMS ranks each clinician against every clinician it reports for the same procedure category.

Hernia repair - groin (open): 1 to 10 procedures (CMS shows small counts as a range)

Mastectomy: 1 to 10 procedures (CMS shows small counts as a range)

Removal of tissue: 1 to 10 procedures (CMS shows small counts as a range)

Skin biopsy: 1 to 10 procedures (CMS shows small counts as a range)

Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)

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Dr. Patrick J. Erwin received $64 in industry payments from 2016 to 2025

CMS Open Payments shows 3 general payments to Dr. Erwin from 2 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Cardinal Health, Inc. paid the most, $33.

General payments to Dr. Erwin by program year, 2016 to 2025

Companies that paid Dr. Erwin the most, 2016 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Erwin

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Patrick J. Erwin graduated from Rutgers New Jersey Medical School

Dr. Erwin graduated from Rutgers New Jersey Medical School in 1988.

  1. Medical schoolRutgers New Jersey Medical School

Source: Dmand AI Professional Profile Data

Sources for Dr. Patrick J. Erwin's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare 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 percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Patrick J. Erwin

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. Patrick J. Erwin's NPI number?

Dr. Patrick J. Erwin's NPI number is 1326017112. It was assigned on March 15, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Patrick J. Erwin?

Dr. Patrick J. Erwin is a general surgeon in Danville, Pennsylvania. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).

Where does Dr. Patrick J. Erwin practice?

Dr. Erwin practices at 100 North Academy Avenue, Danville, PA 17822. Dr. Erwin's primary practice is Geisinger Medical Center in Danville, Pennsylvania, part of Risant Health. Dmand AI also links Dr. Erwin to 1 group practice or clinic and 1 medical group, and a free account names each one.

What is Dr. Patrick J. Erwin's office phone number?

The practice phone on file for Dr. Erwin is (570) 271-6211. Dmand AI also checks direct phone and mobile numbers, available with a free account.

What is Dr. Patrick J. Erwin's email address?

Dmand AI checks professional and personal email addresses for Dr. Erwin through healthcare-specific waterfall enrichment. They are available with a free Dmand AI account.

What is Dr. Patrick J. Erwin's medical license number?

Dr. Erwin holds Pennsylvania license MD048606L.

Which hospitals is Dr. Patrick J. Erwin affiliated with?

Dr. Erwin practices at Geisinger Medical Center in Danville, Pennsylvania. Dr. Erwin is also affiliated with Geisinger Bloomsburg Hospital.

What medical group is Dr. Patrick J. Erwin part of?

Dr. Erwin is linked to Geisinger. Dmand AI links Dr. Erwin to 1 more medical group, named with a free account.

Who does Dr. Patrick J. Erwin practice with?

Dmand AI links 4,272 HCPs to Dr. Erwin's primary medical group, 76 of them general surgeons. A free account lists them, with verified contacts.

Does Dr. Patrick J. Erwin accept Medicare?

Yes. CMS data shows Dr. Erwin billed Medicare for 524 services in 2024, and Dr. Erwin accepts Medicare assignment.

Show 8 more questionsShow fewer questions

Does Dr. Patrick J. Erwin offer telehealth?

Yes. The CMS Doctors and Clinicians file lists Dr. Erwin as offering telehealth services.

How many Medicare patients does Dr. Patrick J. Erwin see?

CMS counts 340 Medicare patients who saw Dr. Erwin in 2026, with an average age of 73.

What services does Dr. Patrick J. Erwin bill to Medicare?

In 2024, Dr. Erwin's most billed Medicare services were office visit, established patient (99213), office visit, new patient (99203) and surgery: digestive system (45380).

Where did Dr. Patrick J. Erwin go to medical school?

Dr. Erwin graduated from Rutgers New Jersey Medical School in 1988.

What drugs does Dr. Patrick J. Erwin prescribe most?

In 2024 Medicare Part D data, Dr. Erwin's most prescribed drugs by claims were Anastrozole, Omeprazole and Tramadol HCl.

Has Dr. Patrick J. Erwin received payments from drug or device companies?

CMS Open Payments shows $64 in general payments to Dr. Erwin from 2 companies from 2016 to 2025. The largest total came from Cardinal Health, Inc.

How long has Dr. Patrick J. Erwin been practicing?

Dr. Erwin graduated from medical school in 1988, 38 years ago.

What EHR does Dr. Patrick J. Erwin's practice use?

Dmand AI tracks the EHR system at Geisinger Medical Center and at 2 more sites and 1 medical group. The vendor and product are available with a free Dmand AI account.

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