NPPES file of Aug 9, 2026

Theo Clyde Manschreck, MD

Psychiatry Physician · Lexington, MA

Theo Clyde Manschreck, MD is a psychiatry physician with a practice address in Lexington, Massachusetts, and NPI 1700867595, issued on Nov 8, 2005. Check the license (Massachusetts 35291, 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 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1700867595
Name
Theo Clyde Manschreck
Credential
MD
Primary taxonomy
Psychiatry Physician 2084P0800X
License number
35291 MA
Self-reported in NPPES; status is on the state search
Practice location
59 Outlook Drive, Lexington, MA 02421
Phone
(781) 863-2304
Enumerated
Nov 8, 2005
Record last updated
Jul 13, 2026
Medicaid ID
6190995 MA
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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Verify Theo Clyde Manschreck 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 35291
    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

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72% fewer Medicare Part D claims than the average psychiatry physician in 2024

285 Medicare Part D claims for 40 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D.

  1. Theo Manschreck285
  2. Specialty average1,000

Most prescribed

  1. Buprenorphine-Naloxone57 claims
  2. Alprazolam48 claims
  3. Clonazepam39 claims
  4. Trazodone Hcl19 claims
  5. Sertraline Hcl16 claims
  6. Dextroamphetamine-Amphetamine15 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.

Theo Clyde Manschreck among 2,736 psychiatry physician records in Massachusetts

Theo Clyde Manschreck, MD is one of 2,736 psychiatry physician records with a practice address in Massachusetts. 65% 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, 90% newer
  • In a Medicare fileYes · 65% of these records are
  • In the CMS Doctors and Clinicians fileNo · 45% of these records are
  • Record last updated2026 · 62% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

29 psychiatry physician records list a practice address in Lexington

They are 29 of the 1,467 NPPES records with a practice address in Lexington, and 2,736 psychiatry physician records in Massachusetts.

The 8 psychiatry physician records with the nearest ZIP codes

  1. Christina Amerault, M.D.Lexington, MA 024211649702937
  2. Amy Banks, M.D.Lexington, MA 024211033166772
  3. Robert Berezin, M.D.Lexington, MA 024211477618536
  4. Ellen Cohen, M.D.Lexington, MA 024211770672800
  5. Mackenzie Davis, MDLexington, MA 024211548897887
  6. Timothy Dugan, MDLexington, MA 024211073607396
  7. Denise Nagel, M.D.Lexington, MA 024211548450679
  8. Samuel Rabison, M.D.Lexington, MA 024211942283817

Common questions

What is Theo Clyde Manschreck, MD's NPI number?

Theo Clyde Manschreck, MD's National Provider Identifier (NPI) is 1700867595, issued on Nov 8, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Theo Clyde Manschreck, MD located?

The NPPES record lists a practice address at 59 Outlook Drive, Lexington, MA, 02421. Phone: (781) 863-2304. Providers update this record themselves, so call before visiting.

How can I verify Theo Clyde Manschreck, MD's license?

NPPES lists Massachusetts license number 35291, 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 Theo Clyde Manschreck, MD prescribe under Medicare Part D?

In 2024, Theo Clyde Manschreck, MD had 285 Medicare Part D claims for 40 beneficiaries; the average among psychiatry physician prescribers was 1,000. Part D covers Medicare prescriptions only.

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.