NPPES file of Aug 9, 2026

Leonid I. Temkin, MD

Pain Medicine (Anesthesiology) Physician · Sanford, ME

Leonid I. Temkin, MD is a pain medicine (anesthesiology) physician with a practice address in Sanford, Maine, and NPI 1801881362, issued on Sep 12, 2005. Check the license (Maine MD13927, as entered in NPPES) on the Maine Board of Licensure 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
1801881362
Name
Leonid I. Temkin
Credential
MD
Primary taxonomy
Pain Medicine (Anesthesiology) Physician 207LP2900X
License number
MD13927 ME
Self-reported in NPPES; status is on the state search
Practice location
25A June St, Sanford, ME 04073
Phone
(207) 490-7822
Enumerated
Sep 12, 2005
Record last updated
Apr 2, 2014 (not updated in 12 years: call before relying on the address or phone)
Fax
(207) 490-7038
Medicare enrollment
Enrolled (PECOS I20050725000596); accepts Medicare assignment
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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Also registered at 25A June St

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

  1. Carol Aspinall, FNPFamily Nurse Practitioner1508971458
  2. Jenifer Baron, LCSWClinical Social Worker1649611971
  3. Mukesh Bhargava, M. D.Internal Medicine Physician1508861741
  4. Brooke ButterfieldFamily Nurse Practitioner1225414840
  5. Andrea Eng, NPFamily Nurse Practitioner1881046845
  6. Jenner Gibson, M.D.Family Medicine Physician1902286131

Verify Leonid I. Temkin in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMaine Board of Licensure in Medicine
    Search for license MD13927
    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 Maine 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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9% more Medicare Part D claims than the average pain medicine (anesthesiology) physician in 2024

1,902 Medicare Part D claims for 386 beneficiaries, against an average of 1,750 among the 2,982 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of claims. 1,517 claims were for opioids.

  1. Leonid Temkin1,902
  2. Specialty average1,750

Most prescribed

  1. Oxycodone Hcl306 claims
  2. Hydrocodone-Acetaminophen277 claims
  3. Methadone Hcl165 claims
  4. Oxycodone-Acetaminophen136 claims
  5. Buprenorphine116 claims
  6. Belbuca108 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): 98.1 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 score86.1
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  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).

Industry payments in 2024: $258.10

8 payments; by number, the most common kind was food and beverage; the largest payer was Boston Scientific Corporation. The 2,789 providers of this specialty with any payment received $3,225.41 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Leonid Temkin$258.10
  2. Specialty average$3,225.41

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

Bills Medicare through one group practice

  1. MainehealthBiddeford, ME

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

Leonid I. Temkin among 18 pain medicine (anesthesiology) physician records in Maine

Leonid I. Temkin, MD is one of 18 pain medicine (anesthesiology) physician records with a practice address in Maine. 56% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 89% newer
  • In a Medicare fileYes · 56% of these records are
  • In the CMS Doctors and Clinicians fileYes · 44% of these records are
  • Record last updated2014 · 56% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207LP2900X and a Maine practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Pain Medicine (Anesthesiology) Physician providers in Maine

There are 18 pain medicine (anesthesiology) physician records in Maine.

The 8 pain medicine (anesthesiology) physician records with the nearest ZIP codes

  1. Muhammad Khan, MDSanford, ME 040731881689065
  2. Gregory Foos, MDScarborough, ME 040741780114264
  3. Christine Kerr, DOScarborough, ME 040741649807082
  4. Peter Leong, M.D.Portland, ME 041011083634646
  5. Isaac Chemmanam, M.D.Portland, ME 041021457653040
  6. Frederick Littlejohn, M.D.Portland, ME 041021053581058
  7. Syena Sarrafpour, M. D.Portland, ME 041021831548577
  8. Wendy Love, MDBrunswick, ME 040111821178286

Common questions

What is Leonid I. Temkin, MD's NPI number?

Leonid I. Temkin, MD's National Provider Identifier (NPI) is 1801881362, issued on Sep 12, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Leonid I. Temkin, MD located?

The NPPES record lists a practice address at 25A June St, Sanford, ME, 04073. Phone: (207) 490-7822. Providers update this record themselves, so call before visiting.

How can I verify Leonid I. Temkin, MD's license?

NPPES lists Maine license number MD13927, as entered by the provider. Search the Maine Board of Licensure in Medicine at https://www.maine.gov/md/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Leonid I. Temkin, MD prescribe under Medicare Part D?

In 2024, Leonid I. Temkin, MD had 1,902 Medicare Part D claims for 386 beneficiaries; the average among pain medicine (anesthesiology) physician prescribers was 1,750. Part D covers Medicare prescriptions only.

What is Leonid I. Temkin, MD's MIPS final score?

The 2023 MIPS final score is 98.1 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.