NPPES file of Aug 9, 2026

Thomas E. Conklin, M.D.

Adult Medicine Physician · Northridge, CA

Thomas E. Conklin, M.D. is an adult medicine physician with a practice address in Northridge, California, and NPI 1124066436, issued on Jun 2, 2006. Check the license on the Medical Board of California; 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
1124066436
Name
Thomas E. Conklin
Credential
M.D.
Primary taxonomy
Adult Medicine Physician 207QA0505X
License number
156153 MA
Self-reported in NPPES; status is on the state search
Practice location
18417 Nordhoff St, Northridge, CA 91325
Phone
(818) 701-0551
Enumerated
Jun 2, 2006
Record last updated
Feb 11, 2015 (not updated in 11 years: call before relying on the address or phone)
Fax
(818) 701-5360
Medicare enrollment
Enrolled (PECOS I20060717000361); accepts Medicare assignment
Medical or professional school
University Of Southern California Keck School Of Medicine, 1978
Telehealth
Offers telehealth (CMS)
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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Verify Thomas E. Conklin in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of CaliforniaCheck 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 California license search

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26% more Medicare Part D claims than the average adult medicine physician in 2024

3,770 Medicare Part D claims for 225 beneficiaries, against an average of 3,002 among the 1,307 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 123 claims were for opioids.

  1. Thomas Conklin3,770
  2. Specialty average3,002

Most prescribed

  1. Atorvastatin Calcium298 claims
  2. Amlodipine Besylate120 claims
  3. Fluticasone Propionate114 claims
  4. Levothyroxine Sodium114 claims
  5. Losartan Potassium103 claims
  6. Metformin Hcl98 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): 7.2 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. Costout of 100 · 30%24.0
  3. Promoting interoperabilitynot scored (reweighted)
  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: $60.62

2 payments; by number, the most common kind was food and beverage; the largest payer was Boehringer Ingelheim Pharmaceuticals, Inc. The 664 providers of this specialty with any payment received $1,405.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Thomas Conklin$60.62
  2. Specialty average$1,405.95

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

Thomas E. Conklin among 386 adult medicine physician records in California

Thomas E. Conklin, M.D. is one of 386 adult medicine physician records with a practice address in California. 69% 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 3% of them.

  • NPI issued2006 · 3% of these records are older, 65% newer
  • In a Medicare fileYes · 69% of these records are
  • In the CMS Doctors and Clinicians fileYes · 48% of these records are
  • Graduated1978 · median 2005 among the 187 with a school on file
  • Record last updated2015 · 63% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207QA0505X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Adult Medicine Physician providers in California

There are 386 adult medicine physician records in California.

The 8 adult medicine physician records with the nearest ZIP codes

  1. Gilbert Fernando, M.D.Northridge, CA 913251467541375
  2. Monika Lee, D.O.Northridge, CA 913251235421504
  3. Sean Chen, MDNorthridge, CA 913241336777838
  4. Craig Miller, MDPorter Ranch, CA 913261588402903
  5. Andrew Degiorgio, M.D.Pacoima, CA 913311447785217
  6. David Moaddel, M.D.West Hills, CA 913071376808626
  7. Margarit Baghdasaryan, FNPGranada Hills, CA 913441588430383
  8. Ashton Garbutt, MDMission Hills, CA 913451407350622

Common questions

What is Thomas E. Conklin, M.D.'s NPI number?

Thomas E. Conklin, M.D.'s National Provider Identifier (NPI) is 1124066436, issued on Jun 2, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Thomas E. Conklin, M.D. located?

The NPPES record lists a practice address at 18417 Nordhoff St, Northridge, CA, 91325. Phone: (818) 701-0551. Providers update this record themselves, so call before visiting.

How can I verify Thomas E. Conklin, M.D.'s license?

Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Thomas E. Conklin, M.D. prescribe under Medicare Part D?

In 2024, Thomas E. Conklin, M.D. had 3,770 Medicare Part D claims for 225 beneficiaries; the average among adult medicine physician prescribers was 3,002. Part D covers Medicare prescriptions only.

What is Thomas E. Conklin, M.D.'s MIPS final score?

The 2023 MIPS final score is 7.2 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.