Dr. Colby Michael Shirk, MD
- Medicare services, 2024
- 540
- Medicare patients, 2024
- 522
- Part D claims, 2024
- 438
- Hospital affiliations
- 3
- Industry payments
- $72
- Practice address
- 112 North Seventh Street, Chambersburg, PA 17201
- Practice phone
- Call (717) 267-3000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Shirk's professional email, personal email and mobile number
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Dr. Colby Michael Shirk is an emergency medicine physician in Chambersburg, Pennsylvania
Dr. Shirk practices at WellSpan Chambersburg Hospital in Chambersburg, Pennsylvania, part of WellSpan Health.
Dr. Shirk's NPI, 1912935271, was assigned on June 28, 2006. Dr. Shirk graduated from Pennsylvania State University College of Medicine in 2003. Dr. Shirk holds Pennsylvania license MD427340.
- NPI
- 1912935271NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3072526144
- NPI enumeration date
- June 28, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (717) 267-3000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 49
- Medical school graduation
- 2003
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Colby Michael Shirk practices at WellSpan Chambersburg Hospital in Chambersburg, Pennsylvania
Dr. Shirk's primary practice is WellSpan Chambersburg Hospital, at 112 North Seventh Street, Chambersburg, PA 17201 in Franklin County. The practice phone is (717) 267-3000.
- WellSpan Chambersburg Hospital112 North Seventh Street, Chambersburg, PA 17201 · Franklin CountyPhone(717) 267-3000
Source: Dmand AI Affiliation Data
Dr. Colby Michael Shirk is affiliated with 3 sites of care and 3 medical groups
Dr. Shirk's primary practice is WellSpan Chambersburg Hospital in Chambersburg, Pennsylvania, part of WellSpan Health. Dr. Shirk is also affiliated with Penn State Health Milton S. Hershey Medical Center. The medical group on file is Chambersburg Hospital Emergency Department. Dmand AI also links Dr. Shirk to 1 more hospital and 2 medical groups, 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. Colby Michael Shirk's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Shirk practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| WellSpan Chambersburg Hospital | Available with a free account |
| +2 more sites and 2 medical groups | 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 WellSpan Health and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Colby Michael Shirk is one of 2,549 emergency medicine physicians in Pennsylvania
Emergency medicine is Dr. Shirk's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Shirk is licensed in Pennsylvania.
Specialties and state licenses
- Emergency medicine, PennsylvaniaPrimary
Emergency medicine physicians near Dr. Shirk
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. Colby Michael Shirk billed Medicare for 540 services in 2024
CMS data shows 540 Medicare services from Dr. Shirk across 3 procedure codes in 2024, for 522 Medicare patients. Medicare paid $61,463 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Shirk's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 5472024: 5401%
Dr. Shirk compared with the Pennsylvania median for emergency medicine physicians, 2024
- Dr. Shirk
- Pennsylvania median
- Medicare services
- 540vs 2432.2 times
- Medicare patients
- 522vs 2332.2 times
- Part D claims
- 309vs 407.7 times
Medians across 2,501 emergency medicine physicians in Pennsylvania with Dmand AI profiles that report each measure.
Dr. Shirk'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 Dr. Shirk and other emergency medicine physicians in Pennsylvania.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Colby Michael Shirk treated 522 Medicare patients in 2024, average age 75
CMS counts 522 Medicare patients who saw Dr. Shirk in 2024. The largest group is 75 to 84, with 169 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 18% are also on Medicaid. Their average risk score is 1.85, 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. Shirk's median patient age at 72, with 53% women.
Dr. Shirk's Medicare patients by age, 2024
Dr. Shirk's Medicare patients by sex, 2024
- Women31260%
- Men21040%
Chronic conditions among Dr. Shirk's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis52%
- Chronic kidney disease43%
- Ischemic heart disease43%
- Anxiety42%
- Diabetes42%
- Mood disorders39%
Share of Medicare patients with each condition. A patient can have several.
Dr. Shirk's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 72
Patient panel by sex, all payers
- Women53%
- Men47%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Colby Michael Shirk wrote 438 Medicare Part D claims in 2024
In 2024, Dr. Shirk wrote 438 Medicare Part D claims for 316 patients. 94% of them were for generic drugs. CMS names the drug for 309 of them, across 10 drugs with 11 or more claims each, at $1,960 in total drug cost. In 2023, CMS named 196 claims across 9 drugs.
Dr. Shirk's Part D claims by kind of drug, 2024
- Generic413 claims94%
- Brand-name25 claims6%
Dr. Shirk'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. Shirk's Part D claims, 2024
- Opioids13%55 of 438 claims
- Antibiotics32%141 of 438 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: 1962024: 30958%
Drugs named by CMS: 10 in 2024, 9 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
How Dr. Colby Michael Shirk takes part in Medicare
Dr. Shirk 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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Dr. Colby Michael Shirk received $72 in industry payments from 2018 to 2024
CMS Open Payments shows 4 general payments to Dr. Shirk from 3 drug and device companies from 2018 to 2024. Food and beverage make up the largest share, 100% of the total. Pfizer Inc. paid the most, $33.
General payments to Dr. Shirk by program year, 2018 to 2024
Companies that paid Dr. Shirk the most, 2018 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Colby Michael Shirk graduated from Pennsylvania State University College of Medicine
Dr. Shirk graduated from Pennsylvania State University College of Medicine in 2003.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Colby Michael Shirk'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) |
| 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. Colby Michael Shirk
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. Colby Michael Shirk's NPI number?
Dr. Colby Michael Shirk's NPI number is 1912935271. It was assigned on June 28, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Colby Michael Shirk?
Dr. Colby Michael Shirk is an emergency medicine physician in Chambersburg, Pennsylvania. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Colby Michael Shirk practice?
Dr. Shirk practices at 112 North Seventh Street, Chambersburg, PA 17201. Dr. Shirk's primary practice is WellSpan Chambersburg Hospital in Chambersburg, Pennsylvania, part of WellSpan Health. Dmand AI also links Dr. Shirk to 1 hospital and 2 medical groups.
What is Dr. Colby Michael Shirk's office phone number?
The practice phone on file for Dr. Shirk is (717) 267-3000.
What is Dr. Colby Michael Shirk's medical license number?
Dr. Shirk holds Pennsylvania license MD427340.
Which hospitals is Dr. Colby Michael Shirk affiliated with?
Dr. Shirk practices at WellSpan Chambersburg Hospital in Chambersburg, Pennsylvania. Dr. Shirk is also affiliated with Penn State Health Milton S. Hershey Medical Center. Dmand AI links Dr. Shirk to 1 more hospital.
What medical group is Dr. Colby Michael Shirk part of?
Dr. Shirk is linked to Chambersburg Hospital Emergency Department. Dmand AI links Dr. Shirk to 2 more medical groups.
Does Dr. Colby Michael Shirk accept Medicare?
Yes. CMS data shows Dr. Shirk billed Medicare for 540 services in 2024, and Dr. Shirk accepts Medicare assignment.
How many Medicare patients does Dr. Colby Michael Shirk see?
CMS counts 522 Medicare patients who saw Dr. Shirk in 2024, with an average age of 75.
What services does Dr. Colby Michael Shirk bill to Medicare?
In 2024, Dr. Shirk's most billed Medicare services were emergency department visit (99285), emergency department visit (99284) and critical care (99291).
Show 4 more questionsShow fewer questions
Where did Dr. Colby Michael Shirk go to medical school?
Dr. Shirk graduated from Pennsylvania State University College of Medicine in 2003.
What drugs does Dr. Colby Michael Shirk prescribe most?
In 2024 Medicare Part D data, Dr. Shirk's most prescribed drugs by claims were Diclofenac Sodium, Cephalexin and Oxycodone HCl.
Has Dr. Colby Michael Shirk received payments from drug or device companies?
CMS Open Payments shows $72 in general payments to Dr. Shirk from 3 companies from 2018 to 2024. The largest total came from Pfizer Inc.
How long has Dr. Colby Michael Shirk been practicing?
Dr. Shirk graduated from medical school in 2003, 23 years ago.
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