NPPES file of Aug 9, 2026

Adam T. Harder, MD

Orthopaedic Surgery Physician · Andover, MA

Adam T. Harder, MD is an orthopaedic surgery physician with a practice address in Andover, Massachusetts, and NPI 1891847497, issued on Jan 17, 2007. Check the license (Massachusetts 235051, as entered in NPPES) on the Massachusetts Board of Registration in 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
1891847497
Name
Adam T. Harder
Credential
MD
Primary taxonomy
Orthopaedic Surgery Physician 207X00000X
License number
235051 MA
Self-reported in NPPES; status is on the state search
Practice location
323 Lowell St, Andover, MA 01810
Phone
(978) 794-1946
Enumerated
Jan 17, 2007
Record last updated
Nov 12, 2024
Fax
(978) 975-3925
Medicare enrollment
Enrolled (PECOS I20090818000357); accepts Medicare assignment
Medical or professional school
Tufts University School Of Medicine, 2003
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.
Download card Updates feed

Also registered at 323 Lowell St

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

  1. Steven Andriola, M.D.Orthopaedic Surgery Physician1174584833
  2. Melissa Bergeron, P.A.Medical Physician Assistant1356485379
  3. Matthew Carlson, PA-CSurgical Physician Assistant1992028583
  4. Madhavi Challagulla, MDInternal Medicine Physician1023132800
  5. Kelly Czworka, NPNurse Practitioner1104984251
  6. Charae D'Ambra, N.P.Pediatric Nurse Practitioner1912199217

Verify Adam T. Harder in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
    Search for license 235051
    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 Massachusetts 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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

76% fewer Medicare Part D claims than the average orthopaedic surgery physician in 2024

84 Medicare Part D claims for 55 beneficiaries, against an average of 346 among the 16,516 providers of this specialty who prescribed in Part D. 15 claims were for opioids.

  1. Adam Harder84
  2. Specialty average346

Most prescribed

  1. Amoxicillin48 claims
  2. Oxycodone Hcl12 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 MIPS final score for 2023 (Medicare payment program): 0 of 100

The Merit-based Incentive Payment System score is reported for this clinician. 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 score0.0
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%0.0
  4. Improvement activities0 of 40 points · 15%0.0

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

Industry payments in 2024: $183.80

8 payments; by number, the most common kind was food and beverage; the largest payer was Vertex Pharmaceuticals Incorporated. The 15,003 providers of this specialty with any payment received $23,022.89 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Adam Harder$184
  2. Specialty average$23,023

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

Bills Medicare through 2 group practices

  1. Northeast Orthopaedic Alliance PLLCSalem, NH
  2. Select Rehabilitation, LLCGlenview, IL

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

Adam T. Harder among 692 orthopaedic surgery physician records in Massachusetts

Adam T. Harder, MD is one of 692 orthopaedic surgery physician records with a practice address in Massachusetts. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 48% of them.

  • NPI issued2007 · 48% of these records are older, 42% newer
  • In a Medicare fileYes · 76% of these records are
  • In the CMS Doctors and Clinicians fileYes · 64% of these records are
  • Graduated2003 · median 2004 among the 441 with a school on file
  • Record last updated2024 · 62% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207X00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Orthopaedic Surgery Physician providers in Massachusetts

There are 692 orthopaedic surgery physician records in Massachusetts.

The 8 orthopaedic surgery physician records with the nearest ZIP codes

  1. Steven Andriola, M.D.Andover, MA 018101174584833
  2. Philip Johnson, MDAndover, MA 018101740743848
  3. Stephanie Clegg, MDBurlington, MA 018051306307533
  4. Mark Gilligan, MDBurlington, MA 018051811922917
  5. William Healy, MDBurlington, MA 018051467523324
  6. Andrew Marcantonio, D.O.Burlington, MA 018051154511293
  7. Naveen Pattisapu, M.D.Burlington, MA 018051871029892
  8. Sanjeev Sharma, MDBurlington, MA 018051144407925

Common questions

What is Adam T. Harder, MD's NPI number?

Adam T. Harder, MD's National Provider Identifier (NPI) is 1891847497, issued on Jan 17, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Adam T. Harder, MD located?

The NPPES record lists a practice address at 323 Lowell St, Andover, MA, 01810. Phone: (978) 794-1946. Providers update this record themselves, so call before visiting.

How can I verify Adam T. Harder, MD's license?

NPPES lists Massachusetts license number 235051, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Adam T. Harder, MD prescribe under Medicare Part D?

In 2024, Adam T. Harder, MD had 84 Medicare Part D claims for 55 beneficiaries; the average among orthopaedic surgery physician prescribers was 346. Part D covers Medicare prescriptions only.

What is Adam T. Harder, MD's MIPS final score?

The 2023 MIPS final score is 0 of 100. 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.