NPPES file of Aug 9, 2026

Sarah Lyn Markland, DO

Student in an Organized Health Care Education/Training Program · Southampton, NY

Sarah Lyn Markland, DO is a student in an organized health care education/training program with a practice address in Southampton, New York, and NPI 1316640691, issued on Mar 24, 2023. Check the license (New York 344028, as entered in NPPES) with the New York board that licenses this profession; 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
1316640691
Name
Sarah Lyn Markland
Credential
DO
Primary taxonomy
Student in an Organized Health Care Education/Training Program 390200000X
License number
344028 NY
Self-reported in NPPES; status is on the state search
Practice location
240 Meeting House LN, Southampton, NY 11968
Phone
(631) 726-0409
Enumerated
Mar 24, 2023
Record last updated
Jun 1, 2026
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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Also registered at 240 Meeting House LN

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

  1. Adriel AbrahamStudent in an Organized Health Care Education/Training Program1609627587
  2. Sreya AddankiStudent in an Organized Health Care Education/Training Program1053114835
  3. Erfan Ahmed, DOStudent in an Organized Health Care Education/Training Program1669267308
  4. Rahat Ahmed, MDStudent in an Organized Health Care Education/Training Program1558823195
  5. Sandra Alfano, R.D.Registered Dietitian1780747188
  6. John AlfaroneStudent in an Organized Health Care Education/Training Program1124967914

Verify Sarah Lyn Markland in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich New York board licenses this profession
    Search for license 344028
    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
Find the New York license search

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73% fewer Medicare Part D claims than the average student in an organized health care education/training program in 2024

50 Medicare Part D claims for 24 beneficiaries, against an average of 185 among the 59,748 providers of this specialty who prescribed in Part D.

  1. Sarah Markland50
  2. Specialty average185

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.

Sarah Lyn Markland among 37,241 student in an organized health care education/training program records in New York

Sarah Lyn Markland, DO is one of 37,241 student in an organized health care education/training program records with a practice address in New York. 31% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2023, is newer than 36% of them.

  • NPI issued2023 · 36% of these records are older, 49% newer
  • In a Medicare fileYes · 31% of these records are
  • In the CMS Doctors and Clinicians fileNo · 5% of these records are
  • Record last updated2026 · 24% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 390200000X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

65 student in an organized health care education/training program records list a practice address in Southampton

They are 65 of the 475 NPPES records with a practice address in Southampton, and 37,241 student in an organized health care education/training program records in New York.

The 8 student in an organized health care education/training program records with the nearest ZIP codes

  1. Rahat Ahmed, MDSouthampton, NY 119681558823195
  2. George BleicherSouthampton, NY 119681689021826
  3. Stephanie Frishman, M.S.Southampton, NY 119681063951044
  4. Thienly Huynh, D.OSouthampton, NY 119681043620222
  5. Xiaoyu Li, D.O.Southampton, NY 119681205275799
  6. Ashima MuttrejaSouthampton, NY 119681033671755
  7. Sarit Sandowski, DOSouthampton, NY 119681861847493
  8. Andie Schneider, MA, CF-SLPSouthampton, NY 119681184078933

Common questions

What is Sarah Lyn Markland, DO's NPI number?

Sarah Lyn Markland, DO's National Provider Identifier (NPI) is 1316640691, issued on Mar 24, 2023. An NPI identifies a provider in billing; it is not a license.

Where is Sarah Lyn Markland, DO located?

The NPPES record lists a practice address at 240 Meeting House LN, Southampton, NY, 11968. Phone: (631) 726-0409. Providers update this record themselves, so call before visiting.

How can I verify Sarah Lyn Markland, DO's license?

NPPES lists New York license number 344028, as entered by the provider. Search the New York board that licenses this profession; the NPPES record confirms identity only.

How much does Sarah Lyn Markland, DO prescribe under Medicare Part D?

In 2024, Sarah Lyn Markland, DO had 50 Medicare Part D claims for 24 beneficiaries; the average among student in an organized health care education/training program prescribers was 185. 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.