NPPES file of Aug 9, 2026

Timothy V. Johnson, D.O.

Obstetrics & Gynecology Physician · Weymouth, MA

Timothy V. Johnson, D.O. is an obstetrics & gynecology physician with a practice address in Weymouth, Massachusetts, and NPI 1144420340, issued on Jul 25, 2007. Check the license (Massachusetts 235874, 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
1144420340
Name
Timothy V. Johnson
Credential
D.O.
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License number
235874 MA
Self-reported in NPPES; status is on the state search
Practice location
90 Libbey Pkwy, Weymouth, MA 02189
Phone
(339) 201-4120
Enumerated
Jul 25, 2007
Record last updated
Oct 9, 2013 (not updated in 13 years: call before relying on the address or phone)
Fax
(339) 201-4122
Medicare enrollment
Enrolled (PECOS I20081008000023); accepts Medicare assignment
Medical or professional school
University Of New England, College Of Osteo Medicine, 2004
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 90 Libbey Pkwy

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

  1. Heidi Anderson-Dockter, M.D.Dermatology Physician1417256314
  2. Katharine Berrio, ATC, LAT, PTAAthletic Trainer1972910875
  3. Christine Bitetti, P.A.Physician Assistant1497008155
  4. Karen Borden, NPNurse Practitioner1548347982
  5. Courtney Csikesz, M.D.Dermatology Physician1760619902
  6. Susan Decoste, M.D.Dermatology Physician1942284591

Verify Timothy V. Johnson 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 235874
    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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56% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024

73 Medicare Part D claims for 36 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D.

  1. Timothy Johnson73
  2. Specialty average165

Most prescribed

  1. Clobetasol Propionate15 claims
  2. Estradiol12 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): 74.8 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 score70.2
  2. Costout of 100 · 30%64.8
  3. Promoting interoperabilityout of 100 · 25%77.0
  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 one group practice

  1. South Shore Medical Center, Inc.Weymouth, MA

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

Timothy V. Johnson among 1,127 obstetrics & gynecology physician records in Massachusetts

Timothy V. Johnson, D.O. is one of 1,127 obstetrics & gynecology physician records with a practice address in Massachusetts. 73% 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 50% of them.

  • NPI issued2007 · 50% of these records are older, 39% newer
  • In a Medicare fileYes · 73% of these records are
  • In the CMS Doctors and Clinicians fileYes · 64% of these records are
  • Graduated2004 · median 2004 among the 715 with a school on file
  • Record last updated2013 · 64% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

14 obstetrics & gynecology physician records list a practice address in Weymouth

They are 14 of the 1,156 NPPES records with a practice address in Weymouth, and 1,127 obstetrics & gynecology physician records in Massachusetts.

The 8 obstetrics & gynecology physician records with the nearest ZIP codes

  1. Julianne Arena, M.D.S Weymouth, MA 021891679541064
  2. Hsi-Pin Chen, MDWeymouth, MA 021891871550228
  3. Kimberly Dever, M.D.S Weymouth, MA 021891265433973
  4. Shannon Fullerton, MDWeymouth, MA 021891821099110
  5. Lisa Gioni, M.D.Weymouth, MA 021891356562573
  6. Christine Hirsemann, M.D.S Weymouth, MA 021891053414136
  7. Darlyne Johnson, M.D.S Weymouth, MA 021891831158518
  8. Ingrid Kotch, MDWeymouth, MA 021891922089648

Common questions

What is Timothy V. Johnson, D.O.'s NPI number?

Timothy V. Johnson, D.O.'s National Provider Identifier (NPI) is 1144420340, issued on Jul 25, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Timothy V. Johnson, D.O. located?

The NPPES record lists a practice address at 90 Libbey Pkwy, Weymouth, MA, 02189. Phone: (339) 201-4120. Providers update this record themselves, so call before visiting.

How can I verify Timothy V. Johnson, D.O.'s license?

NPPES lists Massachusetts license number 235874, 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 Timothy V. Johnson, D.O. prescribe under Medicare Part D?

In 2024, Timothy V. Johnson, D.O. had 73 Medicare Part D claims for 36 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. Part D covers Medicare prescriptions only.

What is Timothy V. Johnson, D.O.'s MIPS final score?

The 2023 MIPS final score is 74.8 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.