NPPES file of Aug 9, 2026

Richard H. Mattson, MD

Neurology Physician · New Haven, CT

Richard H. Mattson, MD is a neurology physician with a practice address in New Haven, Connecticut, and NPI 1578536538, issued on Feb 9, 2006. Check the license (Connecticut 011509, 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
1578536538
Name
Richard H. Mattson
Credential
MD
Primary taxonomy
Neurology Physician 2084N0400X
License number
011509 CT
Self-reported in NPPES; status is on the state search
Practice location
40 Temple St, New Haven, CT 06510
Phone
(203) 785-4085
Enumerated
Feb 9, 2006
Record last updated
Mar 15, 2011 (not updated in 15 years: call before relying on the address or phone)
Fax
(203) 737-1597
Medicaid ID
001115096 CT
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 40 Temple St

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

  1. Kirsten AckermanRegistered Dietitian1396298485
  2. Badr Al Bawardy, MDGastroenterology Physician1104111509
  3. Yonca Arat, MDOphthalmic Plastic and Reconstructive Surgery Physician1861646986
  4. Harry Aslanian, MDGastroenterology Physician1295718401
  5. Ashley Beesley, FNPFamily Nurse Practitioner1629834585
  6. Jennifer Bennick, APRNFamily Nurse Practitioner1770886764

Verify Richard H. Mattson in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersConnecticut Medical Examining Board
    Search for license 011509
    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

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43% fewer Medicare Part D claims than the average neurology physician in 2024

778 Medicare Part D claims for 83 beneficiaries, against an average of 1,370 among the 15,005 providers of this specialty who prescribed in Part D.

  1. Richard Mattson778
  2. Specialty average1,370

Most prescribed

  1. Lamotrigine90 claims
  2. Divalproex Sodium73 claims
  3. Carbamazepine Er61 claims
  4. Levetiracetam48 claims
  5. Clobazam41 claims
  6. Dilantin35 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): 73.6 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 score75.8
  2. Costout of 100 · 30%51.4
  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).

Richard H. Mattson among 345 neurology physician records in Connecticut

Richard H. Mattson, MD is one of 345 neurology physician records with a practice address in Connecticut. 83% 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 11% of them.

  • NPI issued2006 · 11% of these records are older, 63% newer
  • In a Medicare fileYes · 83% of these records are
  • In the CMS Doctors and Clinicians fileNo · 63% of these records are
  • Record last updated2011 · 49% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084N0400X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

121 neurology physician records list a practice address in New Haven

They are 121 of the 9,793 NPPES records with a practice address in New Haven, and 345 neurology physician records in Connecticut.

The 8 neurology physician records with the nearest ZIP codes

  1. Susan Arnold, MDNew Haven, CT 065101720040587
  2. Hal Blumenfeld, MDNew Haven, CT 065101982687109
  3. David Hafler, MDNew Haven, CT 065101689602054
  4. Dhasakumar Navaratnam, MDNew Haven, CT 065101528041738
  5. Steven Novella, MDNew Haven, CT 065101518949254
  6. Huned Patwa, MDNew Haven, CT 065101588649792
  7. Ognen Petroff, MDNew Haven, CT 065101427030162
  8. Jana Preiningerova, MDNew Haven, CT 065101336121078

Common questions

What is Richard H. Mattson, MD's NPI number?

Richard H. Mattson, MD's National Provider Identifier (NPI) is 1578536538, issued on Feb 9, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Richard H. Mattson, MD located?

The NPPES record lists a practice address at 40 Temple St, New Haven, CT, 06510. Phone: (203) 785-4085. Providers update this record themselves, so call before visiting.

How can I verify Richard H. Mattson, MD's license?

NPPES lists Connecticut license number 011509, 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 Richard H. Mattson, MD prescribe under Medicare Part D?

In 2024, Richard H. Mattson, MD had 778 Medicare Part D claims for 83 beneficiaries; the average among neurology physician prescribers was 1,370. Part D covers Medicare prescriptions only.

What is Richard H. Mattson, MD's MIPS final score?

The 2023 MIPS final score is 73.6 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.