NPPES file of Aug 9, 2026

Mark Phillips Altman, M.D.

Orthopaedic Surgery Physician · Hamden, CT

Mark Phillips Altman, M.D. is an orthopaedic surgery physician with a practice address in Hamden, Connecticut, and NPI 1689652711, issued on Jan 9, 2006. Check the license (Connecticut 038149, as entered in NPPES) on the Connecticut Medical Examining Board; 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
1689652711
Name
Mark Phillips Altman
Credential
M.D.
Primary taxonomy
Orthopaedic Surgery Physician 207X00000X
License numbers
038149 CT
38149 CT
Self-reported in NPPES; status is on the state search
Practice location
2200 Whitney Ave Ste 170, Hamden, CT 06518
Phone
(203) 408-2700
Enumerated
Jan 9, 2006
Record last updated
Oct 8, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(203) 884-8201
Medicaid ID
1689652711 CT
Medicare enrollment
Enrolled (PECOS I20050120000321); accepts Medicare assignment
Medical or professional school
Albert Einstein College Of Medicine Of Yeshiva University, 1982
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 2200 Whitney Ave Ste 170

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

  1. John Aversa, D.OColon & Rectal Surgery Physician1588830699
  2. John Bonadies, M.D.Surgery Physician1366471849
  3. Christopher Husko, DOSurgery Physician1447644976

Verify Mark Phillips Altman in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersConnecticut Medical Examining Board
    Search for license 038149
    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 Connecticut 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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56% fewer Medicare Part D claims than the average orthopaedic surgery physician in 2024

152 Medicare Part D claims for 54 beneficiaries, against an average of 346 among the 16,516 providers of this specialty who prescribed in Part D. 49 claims were for opioids.

  1. Mark Altman152
  2. Specialty average346

Most prescribed

  1. Meloxicam24 claims
  2. Celecoxib22 claims
  3. Hydrocodone-Acetaminophen17 claims
  4. Oxycodone Hcl14 claims
  5. Diclofenac Sodium-Misoprostol11 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): 93.3 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 score81.7
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%78.0
  4. Improvement activities40 of 40 points · 15%100.0

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

Bills Medicare through 2 group practices

  1. Northeast Medical Group IncGuilford, CT
  2. Rehabilitation Associates IncFairfield, CT

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

Mark Phillips Altman among 348 orthopaedic surgery physician records in Connecticut

Mark Phillips Altman, M.D. is one of 348 orthopaedic surgery physician records with a practice address in Connecticut. 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 2006, is newer than 21% of them.

  • NPI issued2006 · 21% of these records are older, 37% newer
  • In a Medicare fileYes · 76% of these records are
  • In the CMS Doctors and Clinicians fileYes · 64% of these records are
  • Graduated1982 · median 2000 among the 224 with a school on file
  • Record last updated2020 · 66% 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 Connecticut 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 Connecticut

There are 348 orthopaedic surgery physician records in Connecticut.

The 8 orthopaedic surgery physician records with the nearest ZIP codes

  1. David Gibson, M.D.Hamden, CT 065181649259581
  2. Louis Iorio, M.D.Hamden, CT 065181043216575
  3. John Irving, M.D.Hamden, CT 065181124024674
  4. Norman Kaplan, M.D.Hamden, CT 065181255328217
  5. Eric Padegimas, M.D.Hamden, CT 065181992148761
  6. Glenn Russo, M.D.Hamden, CT 065181134488331
  7. Enzo Sella, M.D.Hamden, CT 065181790772952
  8. Jeffrey Sumner, M.D.Hamden, CT 065181457330318

Common questions

What is Mark Phillips Altman, M.D.'s NPI number?

Mark Phillips Altman, M.D.'s National Provider Identifier (NPI) is 1689652711, issued on Jan 9, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Mark Phillips Altman, M.D. located?

The NPPES record lists a practice address at 2200 Whitney Ave Ste 170, Hamden, CT, 06518. Phone: (203) 408-2700. Providers update this record themselves, so call before visiting.

How can I verify Mark Phillips Altman, M.D.'s license?

NPPES lists Connecticut license number 038149, as entered by the provider. Search the Connecticut Medical Examining Board at https://www.elicense.ct.gov/Lookup/LicenseLookup.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Mark Phillips Altman, M.D. prescribe under Medicare Part D?

In 2024, Mark Phillips Altman, M.D. had 152 Medicare Part D claims for 54 beneficiaries; the average among orthopaedic surgery physician prescribers was 346. Part D covers Medicare prescriptions only.

What is Mark Phillips Altman, M.D.'s MIPS final score?

The 2023 MIPS final score is 93.3 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.