1. Home
  2. Directory
  3. Massachusetts
  4. Boston
  5. Internal Medicine
  6. NPI Profile

DR. PAUL BRIAN DIEFFENBACH M.D.
NPI 1376717348
Internal Medicine - Critical Care Medicine in Boston, MA

Active since April 21, 2008PECOS EnrolledAccepts Medicare Assignment
15 FRANCIS ST, CENTER FOR CHEST DISEASES, BOSTON, MA 02115(617) 732-6770(617) 582-6102 Get Directions Write a Review

NPPES record last updated: April 14, 2013. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. Paul Brian Dieffenbach M.d. NPPES

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

DR. PAUL BRIAN DIEFFENBACH M.D. (NPI 1376717348) is an individual critical care medicine provider in Boston, Massachusetts, licensed in Massachusetts (250616) and active in the NPI registry since April 2008. He is enrolled in Medicare PECOS, is affiliated with Brigham And Women's Hospital, and is a graduate of Harvard Medical School (2008).

NPPES Registry Identity

NPI1376717348
Entity TypeIndividualMale
Primary Taxonomy207RC0200X
Provider Legal NameDR. PAUL BRIAN DIEFFENBACHCredential: M.D.
Location Address15 FRANCIS ST, CENTER FOR CHEST DISEASESBoston, MA 02115-6105
Mailing Address15 Francis St, Center For Chest DiseasesBoston, MA 02115-6105 · (617) 732-6770 · Fax (617) 582-6102
Phone(617) 732-6770
Fax(617) 582-6102
Sole ProprietorNo
Medical School CMSHarvard Medical SchoolGraduated 2008
Enumeration DateApril 21, 2008
Last NPPES UpdateApril 14, 2013
✔ NPI 1376717348 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyInternal Medicine · Critical Care MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207RC0200X
License✔ Licensed in MA · 250616
Definition
An internist who diagnoses, treats and supports patients with multiple organ dysfunction. This specialist may have administrative responsibilities for intensive care units and may also facilitate and coordinate patient care among the primary physician, the critical care staff and other specialists.
Also ListedInternal MedicineTaxonomy 207R00000X · License 250616 (MA)
Also ListedInternal Medicine · Pulmonary DiseaseTaxonomy 207RP1001X · License 250616 (MA)
15 FRANCIS ST, Boston, MA 02115
Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield.Insurance ›

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

Dr. Paul Brian Dieffenbach M.d. 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 ID3375720584
PECOS Enrollment IDI20150825004754
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 3

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.

Critical care, first 30-74 minutes 99291
Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.
69 services43 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.
19 services17 patients
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.
15 services11 patients

Hospital Affiliations CMS Care Compare 2

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

Brigham And Women's Hospital

Acute Care Hospitals · Boston, MA
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number220110
Location75 Francis StreetBoston, MA 02115 · Suffolk County
Emergency services Birthing friendly

Faulkner Hospital-Brigham And Women's

Acute Care Hospitals · Boston, MA
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number220119
Location1153 Centre StreetBoston, MA 02130 · Suffolk County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 02115 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.

Referred Medical Equipment & Supplies CMS DME claims 3

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

Home ventilator, any type, used with non-invasive interface, (e.g., mask, chest shell) E0466
DME-Other DME · category DE005N
1 supplier12 claims12 services$922.57 avg. paid by Medicare
Nebulizer, with compressor E0570
DME-Other DME · category DE000N
2 suppliers51 claims51 services$2.82 avg. paid by Medicare
Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390
DME-Oxygen and Supplies · category DC002N
3 suppliers20 claims20 services$67.94 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 20

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

CLAIRE CELESTE CUTTING MD
Internal Medicine (Pulmonary Disease)
15 FRANCIS ST
BOSTON, MA 02115
Suffolk County (844) 294-5864
DR. SAMUEL J VIDAL M.D., PH.D.
Internal Medicine (Infectious Disease)
15 FRANCIS ST
BOSTON, MA 02115
Suffolk County (610) 213-5273
DR. JOHN JAMES ROSS MD
Internal Medicine (Infectious Disease)
15 FRANCIS ST, PBB-B420
BOSTON, MA 02115
Suffolk County (617) 278-0607
DR. GARY R EPLER MD
Internal Medicine (Pulmonary Disease)
15 FRANCIS ST, BRIGHAM AND WOMENS HOSPITAL CENTER FOR CHEST DISEASES
BOSTON, MA 02115
Suffolk County (617) 732-7621
SWALPA UDIT
Internal Medicine (Infectious Disease)
15 FRANCIS ST
BOSTON, MA 02115
Suffolk County (617) 726-3816
DR. ELEANOR K PHILLIPS MD
Internal Medicine (Critical Care Medicine)
15 FRANCIS ST
BOSTON, MA 02115
Suffolk County (617) 732-5500
SHU HUI JOYCE MCCAFFERTY PA-C
Physician Assistant
15 FRANCIS ST
BOSTON, MA 02115
Suffolk County (617) 732-7678
DAWN LISA DEMEO MD
Internal Medicine (Pulmonary Disease)
15 FRANCIS ST, PBB LOBBY
BOSTON, MA 02115
Suffolk County (617) 732-6038

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 Paul Dieffenbach's NPI number?

The NPI number for Paul Dieffenbach is 1376717348. It was assigned to this individual provider in the NPPES registry on April 21, 2008.

Where is Paul Dieffenbach located?

Paul Dieffenbach practices at 15 Francis St Center For Chest Diseases, Boston, MA 02115. The listed phone number is (617) 732-6770.

What is Paul Dieffenbach's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Critical Care Medicine, with taxonomy code 207RC0200X.

Is Paul Dieffenbach enrolled in Medicare?

Yes. Paul Dieffenbach 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.

What insurance does Paul Dieffenbach accept?

Health plans from Anthem Blue Cross and Blue Shield list Paul Dieffenbach 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.

Is Paul Dieffenbach affiliated with any hospitals?

According to CMS data, Paul Dieffenbach is affiliated with Brigham And Women's Hospital and Faulkner Hospital-Brigham And Women's.

When was this NPI record last updated?

The NPPES record for Paul Dieffenbach was last updated on April 14, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.