NPPES file of Aug 9, 2026

Christopher P. Irwin

Internal Medicine Physician · Mechanicsville, VA

Christopher P. Irwin is an internal medicine physician with a practice address in Mechanicsville, Virginia, and NPI 1427613736, issued on May 2, 2019. Check the license (Virginia 0101275666, as entered in NPPES) on the Virginia Department of Health Professions; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1427613736
Name
Christopher P. Irwin
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
0101275666 VA
Self-reported in NPPES; status is on the state search
Practice location
8200 Meadowbridge RD, Mechanicsville, VA 23116
Phone
(608) 217-1517
Enumerated
May 2, 2019
Record last updated
Aug 17, 2022
Fax
(804) 764-1259
Medicare enrollment
Enrolled (PECOS I20220902002091); accepts Medicare assignment
Medical or professional school
Rutgers New Jersey Medical School, 2019
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 8200 Meadowbridge RD

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Melissa Bailey, DPTPhysical Therapist1922475250
  2. Matthew CarletonPhysician Assistant1316235047
  3. Rebecca Christian, FNP-BCFamily Nurse Practitioner1811701550
  4. Adam CristmanPhysician Assistant1023473543
  5. Andrew Dahlgren, MDSports Medicine (Family Medicine) Physician1740235266
  6. Kennedy Daniels, M.D.Orthopaedic Surgery Physician1538100623

Verify Christopher P. Irwin in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersVirginia Department of Health Professions
    Search for license 0101275666
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Virginia license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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26% more Medicare Part D claims than the average internal medicine physician in 2024

3,999 Medicare Part D claims for 420 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 22 claims were for opioids.

  1. Christopher Irwin3,999
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium337 claims
  2. Amlodipine Besylate199 claims
  3. Levothyroxine Sodium158 claims
  4. Lisinopril129 claims
  5. Omeprazole100 claims
  6. Gabapentin99 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Industry payments in 2024: $166.20

9 payments; by number, the most common kind was food and beverage; the largest payer was Novo Nordisk Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Christopher Irwin$166.20
  2. Specialty average$1,303.06

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Bon Secours Memorial Regional Medical Center LLCMechanicsville, VA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Christopher P. Irwin among 3,599 internal medicine physician records in Virginia

Christopher P. Irwin is one of 3,599 internal medicine physician records with a practice address in Virginia. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 83% of them.

  • NPI issued2019 · 83% of these records are older, 14% newer
  • In a Medicare fileYes · 77% of these records are
  • In the CMS Doctors and Clinicians fileYes · 62% of these records are
  • Graduated2019 · median 2003 among the 2,234 with a school on file
  • Record last updated2022 · 53% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Virginia practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

42 internal medicine physician records list a practice address in Mechanicsville

They are 42 of the 1,577 NPPES records with a practice address in Mechanicsville, and 3,599 internal medicine physician records in Virginia.

The 8 internal medicine physician records with the nearest ZIP codes

  1. William Ciesla, M.D.Mechanicsville, VA 231161265526578
  2. Stanley Czajkowski, MDMechanicsville, VA 231161902878507
  3. Mohamad El-Masri, MDMechanicsville, VA 231161598756298
  4. Brian Foster, MDMechanicsville, VA 231161881646651
  5. Douglas Johnson, M.D.Mechanicsville, VA 231161134150568
  6. David Kelly, M.D.Mechanicsville, VA 231161154359040
  7. Thomas Kim, MDMechanicsville, VA 231161124088364
  8. Jason Lee, M.D.Mechanicsville, VA 231161295767846

Common questions

What is Christopher P. Irwin's NPI number?

Christopher P. Irwin's National Provider Identifier (NPI) is 1427613736, issued on May 2, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Christopher P. Irwin located?

The NPPES record lists a practice address at 8200 Meadowbridge RD, Mechanicsville, VA, 23116. Phone: (608) 217-1517. Providers update this record themselves, so call before visiting.

How can I verify Christopher P. Irwin's license?

NPPES lists Virginia license number 0101275666, as entered by the provider. Search the Virginia Department of Health Professions at https://dhp.virginiainteractive.org/lookup/index. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Christopher P. Irwin prescribe under Medicare Part D?

In 2024, Christopher P. Irwin had 3,999 Medicare Part D claims for 420 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.