NPPES file of Aug 9, 2026

Tatum Siebert, M.ED

Clinical Psychologist · Boston, MA

Tatum Siebert, M.ED is a clinical psychologist with a practice address in Boston, Massachusetts, and NPI 1528389566, issued on Jun 14, 2010. Check the license (Massachusetts 10715, as entered in NPPES) with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1528389566
Name
Tatum Siebert
Credential
M.ED
Primary taxonomy
Clinical Psychologist 103TC0700X
License number
10715 MA
Self-reported in NPPES; status is on the state search
Practice location
84 State St, Boston, MA 02109
Phone
(860) 788-6404
Enumerated
Jun 14, 2010
Record last updated
Aug 19, 2024
Medicare enrollment
Enrolled (PECOS I20230331001984); 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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8 nearest clinical psychologist records → All 3,185 in Massachusetts → Look up another NPI →

Also registered at 84 State St

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

  1. Steven Afrow, NPGerontology Nurse Practitioner1871946152
  2. Corey Baechel, PSYDClinical Psychologist1003149972
  3. Colette Duffy, LCSWClinical Social Worker1447809553
  4. Tarah Foley, LCSWClinical Social Worker1962128686
  5. Amina FoutPsychiatric/Mental Health Nurse Practitioner1962035840
  6. Kelly Lincoln, FNPFamily Nurse Practitioner1518591619

Verify Tatum Siebert in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
    Search for license 10715    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 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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Bills Medicare through 4 group practices

  1. Meditelecare OF Massachusetts, PLLCBoston, MA
  2. Medoptions OF Maine LLCBelfast, ME
  3. Medoptions OF New Hampshire LLCBoscawen, NH
  4. Medoptions OF Vermont LLCBarre, VT

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

Tatum Siebert among 3,185 clinical psychologist records in Massachusetts

Tatum Siebert, M.ED is one of 3,185 clinical psychologist records with a practice address in Massachusetts. 12% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 58% of them.

  • NPI issued2010 · 58% of these records are older, 38% newer
  • In a Medicare fileYes · 12% of these records are
  • In the CMS Doctors and Clinicians fileYes · 24% of these records are
  • Graduated2016 · median 2000 among the 777 with a school on file
  • Record last updated2024 · 71% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 103TC0700X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

509 clinical psychologist records list a practice address in Boston

They are 509 of the 41,865 NPPES records with a practice address in Boston, and 3,185 clinical psychologist records in Massachusetts.

All 3,185 in Massachusetts → Every provider in Boston → Clinical Psychologist nationwide →

The 8 clinical psychologist records with the nearest ZIP codes

  1. Liya Akoury, PH.D.Boston, MA 021091689190399
  2. Corey Baechel, PSYDBoston, MA 021091003149972
  3. Linda Bolle, PSY.D.Boston, MA 021091124188099
  4. David Bricklin-SmallBoston, MA 021091184027401
  5. Jefferson Crowe, PSY.D.Boston, MA 021091003294562
  6. Michelle De Sedas, PSYDBoston, MA 021091568828580
  7. Laura Dietmann, PSYDBoston, MA 021091972040483
  8. Kevin Grimes, PH.D.Boston, MA 021091033153648

Common questions

What is Tatum Siebert, M.ED's NPI number?

Tatum Siebert, M.ED's National Provider Identifier (NPI) is 1528389566, issued on Jun 14, 2010. An NPI identifies a provider in billing; it is not a license.

Where is Tatum Siebert, M.ED located?

The NPPES record lists a practice address at 84 State St, Boston, MA, 02109. Phone: (860) 788-6404. Providers update this record themselves, so call before visiting.

How can I verify Tatum Siebert, M.ED's license?

NPPES lists Massachusetts license number 10715, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.