NPPES file of Aug 9, 2026

Laurence H. Klein, MD

Internal Medicine Physician · Turners Falls, MA

Laurence H. Klein, MD is an internal medicine physician with a practice address in Turners Falls, Massachusetts, and NPI 1285621144, issued on Oct 5, 2005. Check the license (Massachusetts 46101, 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
1285621144
Name
Laurence H. Klein
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
46101 MA
Self-reported in NPPES; status is on the state search
Practice location
8 Burnham St, Turners Falls, MA 01376
Phone
(413) 774-5554
Enumerated
Oct 5, 2005
Record last updated
Jul 8, 2016 (not updated in 10 years: call before relying on the address or phone)
Fax
(413) 775-9137
Medicaid ID
0137626 MA
Medicare enrollment
Enrolled (PECOS I20050928000822); accepts Medicare assignment
Medical or professional school
Medical College Of Wisconsin, 1978
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 8 Burnham St

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

  1. Adam Blacksin, MDInternal Medicine Physician1811983810
  2. Wayne Gavryck, M.D.Addiction Medicine (Internal Medicine) Physician1780673970
  3. Judith Haupt, RNCAdult Health Nurse Practitioner1023099884
  4. Marie KolarikPhysician Assistant1528794617
  5. John Lentz, PAPhysician Assistant1437279163
  6. Janice Peterson, NPFamily Nurse Practitioner1730176363

Verify Laurence H. Klein 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 46101
    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.

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20% more Medicare Part D claims than the average internal medicine physician in 2024

3,815 Medicare Part D claims for 152 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 21% of claims.

  1. Laurence Klein3,815
  2. Specialty average3,176

Most prescribed

  1. Eliquis302 claims
  2. Levothyroxine Sodium255 claims
  3. Gabapentin190 claims
  4. Atorvastatin Calcium122 claims
  5. Amlodipine Besylate117 claims
  6. Trazodone Hcl111 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): 77.1 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 score61.2
  2. Costout of 100 · 30%45.1
  3. Promoting interoperabilityout of 100 · 25%81.0
  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).

Bills Medicare through 2 group practices

  1. CH Specialty Services MA PCSpringfield, MA
  2. Paradigm Healthcare, PCLeeds, MA

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

6 internal medicine physician records list a practice address in Turners Falls

They are 6 of the 67 NPPES records with a practice address in Turners Falls, and 6,825 internal medicine physician records in Massachusetts.

Other internal medicine physician records in Massachusetts

  1. Nawal Aamir, MDWorcester, MA1588248926
  2. Nathan Abare, MDSpringfield, MA1386852747
  3. Nooshin Abbasi, MD MPHNewton, MA1831888353
  4. Taimur AbbasiBoston, MA1841673522
  5. Lauren Abbate, MDBoston, MA1922099621
  6. Bassima Abdallah, MDBoston, MA1912327305
  7. Maya Abdallah, MDBoston, MA1861854937
  8. Samah Abdallah, MDBrighton, MA1730814971
  9. Omar Abdel-Wahab, M.D.Boston, MA1023042777
  10. Mohab AbdelhalimBoston, MA1871388496

Common questions

What is Laurence H. Klein, MD's NPI number?

Laurence H. Klein, MD's National Provider Identifier (NPI) is 1285621144, issued on Oct 5, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Laurence H. Klein, MD located?

The NPPES record lists a practice address at 8 Burnham St, Turners Falls, MA, 01376. Phone: (413) 774-5554. Providers update this record themselves, so call before visiting.

How can I verify Laurence H. Klein, MD's license?

NPPES lists Massachusetts license number 46101, 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 Laurence H. Klein, MD prescribe under Medicare Part D?

In 2024, Laurence H. Klein, MD had 3,815 Medicare Part D claims for 152 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.

What is Laurence H. Klein, MD's MIPS final score?

The 2023 MIPS final score is 77.1 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.