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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

THOMAS S BOWMAN MD
NPI 1255398624
Internal Medicine in Boston, MA

Active since April 28, 2006PECOS Enrolled
1620 TREMONT ST, BRIGHAM AND WOMENS HOSPITAL DIVISION OF AGING, BOSTON, MA 02120(617) 525-7631 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Thomas S Bowman Md NPPES

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

THOMAS S BOWMAN MD (NPI 1255398624) is an individual internal medicine provider in Boston, Massachusetts, licensed in Massachusetts (209232) and active in the NPI registry since April 2006. He is enrolled in Medicare PECOS, is affiliated with Nantucket Cottage Hospital, and is a graduate of University Of Michigan Medical School (1997).

NPPES Registry Identity

NPI1255398624
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameTHOMAS S BOWMANCredential: MD
Location Address1620 TREMONT ST, BRIGHAM AND WOMENS HOSPITAL DIVISION OF AGINGBoston, MA 02120
Mailing Address1620 Tremont St, Brigham And Womens Hospital Division Of AgingBoston, MA 02120 · (617) 525-7631
Phone(617) 525-7631
Sole ProprietorNo
Medical School CMSUniversity Of Michigan Medical SchoolGraduated 1997
Enumeration DateApril 28, 2006
Last NPPES UpdateJuly 13, 2026
✔ NPI 1255398624 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in MA · 209232
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
1620 TREMONT ST, Boston, MA 02120
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Thomas S Bowman Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID3678463189
PECOS Enrollment IDI20040318000399
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.

Areas of Expertise CMS Part B claims 5

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.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
65 services37 patients
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222
Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
31 services30 patients
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 93010
A routine electrocardiogram (ECG) with 12 leads is a simple, non-invasive test that records the electrical activity of your heart. It helps in identifying heart conditions by detecting irregularities in your heart rhythms. The results are interpreted and a report is provided.
23 services23 patients
Hospital discharge day management, 30 minutes or less 99238
Hospital discharge day management of 30 minutes or less includes finalizing your treatment, discussing your progress, and planning after-care at home. It ensures you're ready to leave the hospital and continue recovery safely.
23 services23 patients
Hospital discharge day management, more than 30 minutes 99239
Hospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.
23 services21 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Nantucket Cottage Hospital

Acute Care Hospitals · Nantucket, MA
OwnershipVoluntary non-profit - Private
CMS Certification Number220177
Location57 Prospect StreetNantucket, MA 02554 · Nantucket County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 02120 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
$144.11 typical visit price
range $63.72 – $189.86
Typical copayment $36.02 (range $15.93 – $47.46)
Most-billed visit code 99204
Established Patient
$111.18 typical visit price
range $21.07 – $155.29
Typical copayment $27.79 (range $5.26 – $38.82)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 16

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

DR. OMAR HASAN MD
Internal Medicine
1620 TREMONT ST, 3RD FLOOR
ROXBURY CROSSING, MA 02120
Suffolk County (617) 732-7063
SALMAAN KESHAVJEE MD PHD
Internal Medicine
1620 TREMONT ST, SMHI DIVISION
ROXBURY CROSSING, MA 02120
Suffolk County (617) 525-7649
LENNY LOPEZ MD MDIV
Internal Medicine
1620 TREMONT ST, DEPARTMENT OF MEDICINE
BOSTON, MA 02120
Suffolk County (617) 732-6660
DR. MARYAM JESSRI D.D.S, PH.D
Dentist
1620 TREMONT ST, ORAL MEDICINE AND DENTISTRY, SUITE BC-3-028
BOSTON, MA 02120
Suffolk County (617) 732-6684
JEFFREY L SCHNIPPER M.D.
Hospitalist
1620 TREMONT ST
ROXBURY CROSSING, MA 02120
Suffolk County (617) 732-6201
DR. SAMUEL RICHARD GORDON FINLAYSON MD, MPH
Surgery
1620 TREMONT ST, 4TH FLOOR
BOSTON, MA 02120
Suffolk County (617) 525-7300
DEBORAH BARTZ M.D.
Obstetrics & Gynecology (Gynecology)
1620 TREMONT ST, OBC 3
ROXBURY CROSSING, MA 02120
Suffolk County (617) 525-7744
DR. JOSEPH P FROLKIS M.D.
Internal Medicine
1620 TREMONT ST
BOSTON, MA 02120
Suffolk County (617) 525-9544

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 Thomas Bowman's NPI number?

The NPI number for Thomas Bowman is 1255398624. It was assigned to this individual provider in the NPPES registry on April 28, 2006.

Where is Thomas Bowman located?

Thomas Bowman practices at 1620 Tremont St Brigham And Womens Hospital Division Of Aging, Boston, MA 02120. The listed phone number is (617) 525-7631.

What is Thomas Bowman's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Thomas Bowman enrolled in Medicare?

Yes. Thomas Bowman is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Is Thomas Bowman affiliated with any hospitals?

According to CMS data, Thomas Bowman is affiliated with Nantucket Cottage Hospital.

When was this NPI record last updated?

The NPPES record for Thomas Bowman was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 28 days 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.