TODD RICHARDSON GRISWOLD (M.D.) – Psychiatry Physician, NPI 1457335598

TODD RICHARDSON GRISWOLD (M.D.) is a healthcare provider. based in Somerville, Massachusetts. specializing in PSYCHIATRY. They hold the professional credentials M.D.. They hold a License No. 71702 (MA). The NPI Number for TODD RICHARDSON GRISWOLD (M.D.) is 1457335598

Main info

Male
38 Years Of Experience
Accepts Medicare Assignment
Name
TODD RICHARDSON GRISWOLD (M.D.)
NPI
1457335598
Phone
(617) 591-6187
Address
26 CENTRAL ST
Enumeration Date
2 December 2005
Last Update Date
7 December 2011

Doctor Profile

Medical School Name
COLUMBIA UNIVERSITY COLLEGE OF PHYSICIANS AND SURGEONS
Secondary Phone
6176651000
Graduation Year
1988 (38 years ago)
PAC ID
3072529114
Group Practice PAC ID
8921910894
Professional Enrollment ID
I20060228000219
Address ID
MA021391047CA1493XSTXX300
Telehealth
Yes
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience54
Completeness75
Years active:20State licenses:1Digital endpointsOther names

1,743 PSYCHIATRY in MA

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Provider Addresses for TODD RICHARDSON GRISWOLD (M.D.)

  • 26, Central Street, Spring Hill, Somerville, Middlesex County, Massachusetts, 02143, United States

    CAMBRIDGE HEALTH ALLIANCE

    SOMERVILLE, MA 021432827

    Phone: (617) 591-6187

    Mailing address matches the actual address.

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

No Open Payments data available for this provider.

This can happen when there are no reportable CMS Open Payments records.

Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

PECOS enrollment status

Participating (accepts Medicare assignment)

Enrollment effective: 2006-02-28

PECOS data refreshed: 2026-05-27

Medicare revalidation (CMS due date list)

Due date not assigned yet

CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.

Enrollment records

1

Earliest due date

Not assigned (TBD)

CMS data updated

2026-06-01

Revalidation progress

  1. Medicare enrolled
  2. On CMS revalidation list
  3. Due date assigned
  4. Revalidate in PECOS

CMS enrollment records

Enrollment IDTypeSpecialtyStateDue date
I20060228000219IPsychiatryMATBD

What to do next

  • No action required while the due date shows TBD.
  • Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
  • Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.

Verify on CMS Revalidation Lookup Tool

Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS

Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

Top Medicare procedures (2023) · refreshed 2026-05-27

HCPCSDescriptionServicesBeneficiariesMedicare allowed
99214Established patient office or other outpatient visit, 30-39 minutes4111$0
View full utilization report →

Insurance plans in this area (ZIP 02143)

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Group practice members

Group practice members are other physicians who share the same Group Practice PAC ID with this doctor. When doctors form a group practice and register in PECOS as a single entity, they receive a shared identification number. This table lists all providers in the same group practice.
PAC ID: 8921910894View full group profile
NameSpecialtyState
Family PracticeMA
-MA
-NH
Rheumatology, Internal MedicineMA
-MA
Emergency MedicineMA
Family PracticeMA
O B S T E T R I C S/ G Y N E C O L O G YPA
Emergency MedicineMA
Physician AssistantMA

Reviews

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Frequently asked questions

Can I use this page to confirm TODD RICHARDSON GRISWOLD (M.D.)'s NPI?
Yes. TODD RICHARDSON GRISWOLD (M.D.) is listed with NPI 1457335598 in the public NPI dataset.
Does CMS list TODD RICHARDSON GRISWOLD (M.D.) as active?
Yes — TODD RICHARDSON GRISWOLD (M.D.) is active in the NPI listing used on this page.
What taxonomy line describes TODD RICHARDSON GRISWOLD (M.D.)?
For research purposes, treat TODD RICHARDSON GRISWOLD (M.D.) as Psychiatry Physician in this dataset. Clinical services aligned with this taxonomy classification.
Does TODD RICHARDSON GRISWOLD (M.D.) list a practice location?
Patients near Somerville, Massachusetts may find TODD RICHARDSON GRISWOLD (M.D.) in results; validate coverage separately.
What does 'Individual Provider' mean on this profile?
Entity type tells you whether the number belongs to a person or an organization.

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