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DR. THADDEUS T SHATTUCK MD
NPI 1285798447
Psychiatry & Neurology - Psychiatry in Lewiston, ME

Active since December 21, 2006PECOS Enrolled
98.06/100
CMS Quality Rating
330 SABATTUS ST STE A, LEWISTON, ME 04240(207) 777-8959(207) 753-3093 Get Directions Write a Review

NPPES record last updated: March 27, 2024. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Aug 23, 2021, Sep 4, 2019, Jun 5, 2019 (3 updates tracked since 2019).

About Dr. Thaddeus T Shattuck Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. THADDEUS T SHATTUCK MD (NPI 1285798447) is an individual psychiatry provider in Lewiston, Maine, licensed in Maine (018527) and active in the NPI registry since December 2006. He is enrolled in Medicare PECOS and maintains a secondary practice location in Portland.

NPPES Registry Identity

NPI1285798447
Entity TypeIndividualMale
Primary Taxonomy2084P0800X
Provider Legal NameDR. THADDEUS T SHATTUCKCredential: MD
Location Address330 SABATTUS ST STE ALewiston, ME 04240-5553
Mailing Address165 Lancaster StPortland, ME 04101-2406 · (207) 874-1030 · Fax (207) 874-1044
Phone(207) 777-8959
Fax(207) 753-3093
Sole ProprietorNo
Enumeration DateDecember 21, 2006
Last NPPES UpdateMarch 27, 20243 updates tracked since enumeration
NPPES CertifiedMarch 19, 2024
✔ NPI 1285798447 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPsychiatry & Neurology · PsychiatryAllopathic & Osteopathic Physicians
Taxonomy Code2084P0800X
License✔ Licensed in ME · 018527
Definition
A Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.
Also ListedPsychiatry & Neurology · Sleep MedicineTaxonomy 2084S0012X · License MD18527 (ME)
330 SABATTUS ST STE A, Lewiston, ME 04240
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Secondary Practice Location 1

Location 165 Lancaster StPortland, ME 04101 · Phone (207) 874-1030 · Fax (207) 874-1044

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Harvard Pilgrim Health Care, Taro Health.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Thaddeus T Shattuck Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

2

Medicare enrollment records show Thaddeus Shattuck reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

St. Mary's Regional Medical Center
0.1 mi
General Acute Care Hospital
93 CAMPUS AVE
Lewiston, ME 04240
  • Reassigned Medicare billing, Maine enrollment
  • Medicare enrollment name: St Marys Regional Medical Center
  • 381 clinicians in this Medicare group
NPI 1447226584 (207) 777-8100
Mainehealth
18 mi
Critical Access
181 MAIN ST
Norway, ME 04268
  • Reassigned Medicare billing, Maine enrollment
  • 3,140 clinicians in this Medicare group
NPI 1447730247 (207) 743-5933

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 8

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
104 services40 patients
Sleep study including heart rate, breathing, and sleep time 95800
A sleep study monitors your sleep patterns to evaluate your sleep quality. It records your heart rate, breathing, and actual sleep time. This information helps identify any sleep disorders, ensuring you get the rest you need for optimal health.
34 services32 patients
Sleep study in sleep lab (6 years or older) 95810
A sleep study in a sleep lab is a non-invasive overnight test that monitors your body while you sleep. It helps doctors understand your sleep patterns and identify any issues like sleep apnea or insomnia. You'll be connected to equipment that tracks your heart rate, brain waves, breathing, and movements.
34 services34 patients
Sleep study in sleep lab with continuous airway pressure (6 years or older) 95811
A sleep study in a sleep lab with continuous airway pressure is a test for individuals aged 6 and above. It monitors your sleep patterns to check for disorders like sleep apnea. Continuous airway pressure helps keep your airways open while you sleep, improving your breathing.
29 services29 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
29 services23 patients
Sleep study including heart rate, breathing, and sleep time 95800
A sleep study monitors your sleep patterns to evaluate your sleep quality. It records your heart rate, breathing, and actual sleep time. This information helps identify any sleep disorders, ensuring you get the rest you need for optimal health.
25 services25 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 04240 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$162.77 typical visit price
range $53.26 – $162.77
Typical copayment $40.69 (range $13.31 – $40.69)
Most-billed visit code 99205
Established Patient
$66.74 typical visit price
range $16.90 – $132.79
Typical copayment $16.68 (range $4.22 – $33.19)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

98.06/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored through an Alternative Payment Model
Quality86.13
Promoting Interoperability100
Improvement Activities40

Referred Medical Equipment & Supplies CMS DME claims 17

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Tubing with integrated heating element for use with positive airway pressure device A4604
DME-Other DME · category DE001N
13 suppliers216 claims216 services$38.74 avg. paid by Medicare
Full face mask used with positive airway pressure device, each A7030
DME-Other DME · category DE001N
10 suppliers101 claims101 services$103.75 avg. paid by Medicare
Face mask interface, replacement for full face mask, each A7031
DME-Other DME · category DE001N
10 suppliers144 claims387 services$37.79 avg. paid by Medicare
Cushion for use on nasal mask interface, replacement only, each A7032
DME-Other DME · category DE001N
9 suppliers103 claims598 services$21.19 avg. paid by Medicare
Pillow for use on nasal cannula type interface, replacement only, pair A7033
DME-Other DME · category DE001N
5 suppliers29 claims157 services$16.31 avg. paid by Medicare
Nasal interface (mask or cannula type) used with positive airway pressure device, with or without head strap A7034
DME-Other DME · category DE001N
10 suppliers109 claims109 services$60.95 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. ANTHONY BEKASIAK MD
Internal Medicine (Critical Care Medicine)
330 SABATTUS ST STE A
LEWISTON, ME 04240
Androscoggin County (617) 789-3000

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Thaddeus Shattuck's NPI number?

The NPI number for Thaddeus Shattuck is 1285798447. It was assigned to this individual provider in the NPPES registry on December 21, 2006.

Where is Thaddeus Shattuck located?

Thaddeus Shattuck practices at 330 Sabattus St Ste A, Lewiston, ME 04240. The listed phone number is (207) 777-8959.

What is Thaddeus Shattuck's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.

Is Thaddeus Shattuck enrolled in Medicare?

Yes. Thaddeus Shattuck is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Thaddeus Shattuck's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Thaddeus Shattuck reassigns Medicare benefits to 2 organizations: St. Mary's Regional Medical Center (Lewiston, ME) and Mainehealth (Norway, ME). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Thaddeus Shattuck's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Thaddeus Shattuck accept?

Health plans from Harvard Pilgrim Health Care and Taro Health list Thaddeus Shattuck as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Thaddeus Shattuck was last updated on March 27, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.