NPPES file of Aug 9, 2026

Anthony David Chismark, MD

Colon & Rectal Surgery Physician · Exeter, NH

Anthony David Chismark, MD is a colon & rectal surgery physician with a practice address in Exeter, New Hampshire, and NPI 1679583389, issued on Aug 8, 2006. Check the license (New Hampshire 13146, as entered in NPPES) on the New Hampshire Board of Medicine; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1679583389
Name
Anthony David Chismark
Credential
MD
Primary taxonomy
Colon & Rectal Surgery Physician 208C00000X
License number
13146 NH
Self-reported in NPPES; status is on the state search
Practice location
3 Alumni Dr, Exeter, NH 03833
Phone
(603) 775-7405
Enumerated
Aug 8, 2006
Record last updated
Feb 22, 2012 (not updated in 14 years: call before relying on the address or phone)
Fax
(603) 775-7424
Medicaid ID
30206138 NH
Medicare enrollment
Enrolled (PECOS I20120816000124); accepts Medicare assignment
Medical or professional school
Geisel School Of Medicine At Dartmouth, 2000
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 3 Alumni Dr

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

  1. Carey Barry, PACPhysician Assistant1205897451
  2. Deborah Browne, M.D.Obstetrics & Gynecology Physician1205945458
  3. Evelyne Caron, M.D.Obstetrics & Gynecology Physician1093990459
  4. Nicole Gargiulo, PA-CSurgical Physician Assistant1306919667
  5. Alan Gladstone, MDCardiovascular Disease Physician1467484386
  6. Kerry Hanssen, PA-CSurgical Physician Assistant1760588933

Verify Anthony David Chismark in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersNew Hampshire Board of Medicine
    Search for license 13146
    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 New Hampshire license search

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60% fewer Medicare Part D claims than the average colon & rectal surgery physician in 2024

77 Medicare Part D claims for 40 beneficiaries, against an average of 192 among the 1,836 providers of this specialty who prescribed in Part D. 13 claims were for opioids.

  1. Anthony Chismark77
  2. Specialty average192

Most prescribed

  1. Neomycin Sulfate23 claims
  2. Metronidazole22 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.

The practice group's MIPS final score for 2023 (Medicare payment program): 76.7 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score78.0
  2. Costout of 100 · 30%61.0
  3. Promoting interoperabilityout of 100 · 25%74.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $131.20

1 payment: food and beverage; the largest payer was Boston Scientific Corporation. The 1,524 providers of this specialty with any payment received $3,468.16 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Anthony Chismark$131.20
  2. Specialty average$3,468.16

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. Albany Medical CollegeAlbany, NY

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

Colon & Rectal Surgery Physician providers in New Hampshire

There are 7 colon & rectal surgery physician records in New Hampshire.

The 6 colon & rectal surgery physician records with the nearest ZIP codes

  1. Liam HaveranWoodsville, NH 037851417093675
  2. Srinivas Ivatury, MDLebanon, NH 037561003098237
  3. Anne Granfield, MDConcord, NH 033011124388160
  4. Russell Strong, M.D.Concord, NH 033011083663199
  5. Jeffrey Harnsberger, M.D.Manchester, NH 031041033135967
  6. John Flannery, M.D.Nashua, NH 030601316996614

Common questions

What is Anthony David Chismark, MD's NPI number?

Anthony David Chismark, MD's National Provider Identifier (NPI) is 1679583389, issued on Aug 8, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Anthony David Chismark, MD located?

The NPPES record lists a practice address at 3 Alumni Dr, Exeter, NH, 03833. Phone: (603) 775-7405. Providers update this record themselves, so call before visiting.

How can I verify Anthony David Chismark, MD's license?

NPPES lists New Hampshire license number 13146, as entered by the provider. Search the New Hampshire Board of Medicine at https://www.oplc.nh.gov/board-medicine. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Anthony David Chismark, MD prescribe under Medicare Part D?

In 2024, Anthony David Chismark, MD had 77 Medicare Part D claims for 40 beneficiaries; the average among colon & rectal surgery physician prescribers was 192. Part D covers Medicare prescriptions only.

What is Anthony David Chismark, MD's MIPS final score?

The 2023 MIPS final score is 76.7 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

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.