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DR. J BENJAMIN CROCKER MD
NPI 1063402790
Internal Medicine in Boston, MA

Active since October 25, 2005PECOS Enrolled
101 MERRIMAC ST STE 1000, AMBULATORY PRACTICE OF THE FUTURE, BOSTON, MA 02114(617) 724-1100(617) 643-8898 Get Directions Write a Review

NPPES record last updated: February 7, 2014. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Dr. J Benjamin Crocker Md NPPES

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

DR. J BENJAMIN CROCKER MD (NPI 1063402790) is an individual internal medicine provider in Boston, Massachusetts, licensed in Massachusetts (159921) and active in the NPI registry since October 2005. He is enrolled in Medicare PECOS, is affiliated with Newton-wellesley Hospital, and is a graduate of University Of Massachusetts Medical School (1997).

NPPES Registry Identity

NPI1063402790
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. J BENJAMIN CROCKERCredential: MD
Location Address101 MERRIMAC ST STE 1000, AMBULATORY PRACTICE OF THE FUTUREBoston, MA 02114-4773
Mailing AddressPo Box 9142, Mass General Physician OrganizationCharlestown, MA 02129-9142 · (617) 724-1100 · Fax (617) 643-8898
Phone(617) 724-1100
Fax(617) 643-8898
Sole ProprietorNo
Medical School CMSUniversity Of Massachusetts Medical SchoolGraduated 1997
Enumeration DateOctober 25, 2005
Last NPPES UpdateFebruary 7, 2014
✔ NPI 1063402790 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 · 159921
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.
101 MERRIMAC ST STE 1000, Boston, MA 02114
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Other Identifiers 5

OtherJ23402MA · Bcbs Ma
Medicare PINA29911MA
Other159921MA · Tufts Health Plan
Medicare UPINH03370
Medicaid0114863MA

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include 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. J Benjamin Crocker Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID8921088584
PECOS Enrollment IDI20040723000250
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

5

Medicare enrollment records show J Crocker reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Massachusetts General Physicians Organization Inc
0.4 mi
Dermatology
55 FRUIT ST, BUL 2
Boston, MA 02114
  • Reassigned Medicare billing, Massachusetts enrollment
  • 6,360 clinicians in this Medicare group
NPI 1801874573 (617) 724-0287
The General Hospital Corporation
0.4 mi
General Acute Care Hospital
55 FRUIT ST, BULFINCH 360
Boston, MA 02114
  • Reassigned Medicare billing, Massachusetts enrollment
  • 6,234 clinicians in this Medicare group
NPI 1023049236 (617) 726-2000
Mass General Brigham Urgent Care LLC
3.3 mi
Urgent Care
1285 BEACON ST
Brookline, MA 02446
  • Reassigned Medicare billing, Massachusetts enrollment
  • 144 clinicians in this Medicare group
NPI 1720486830 (617) 751-6205
Personalmds, LLC
3.5 mi
Internal Medicine
33 POND AVE, SUITE B109
Brookline, MA 02445
  • Reassigned Medicare billing, Massachusetts enrollment
  • 12 clinicians in this Medicare group
NPI 1710179197 (781) 454-6187
Mass General Brigham Medical Group Northern Massachusetts Inc
13 mi
Emergency Medicine
81 HIGHLAND AVE
Salem, MA 01970
  • Reassigned Medicare billing, Massachusetts enrollment
  • 994 clinicians in this Medicare group
NPI 1588606123 (978) 354-4173

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 2

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 low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
26 services26 patients
New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203
This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.
13 services13 patients

Hospital Affiliations CMS Care Compare 2

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

Newton-Wellesley Hospital

Acute Care Hospitals · Newton, MA
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number220101
Location2014 Washington StreetNewton, MA 02462 · Middlesex County
Emergency services Birthing friendly

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 02114 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

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

DR. DAVID C JUDGE MD
Internal Medicine
101 MERRIMAC ST STE 1000, AMBULATORY PRACTICE OF THE FUTURE
BOSTON, MA 02114
Suffolk County (617) 724-1100

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 J Crocker's NPI number?

The NPI number for J Crocker is 1063402790. It was assigned to this individual provider in the NPPES registry on October 25, 2005.

Where is J Crocker located?

J Crocker practices at 101 Merrimac St Ste 1000 Ambulatory Practice Of The Future, Boston, MA 02114. The listed phone number is (617) 724-1100.

What is J Crocker's specialty?

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

Is J Crocker enrolled in Medicare?

Yes. J Crocker is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for J Crocker's services?

According to the CMS Revalidation Reassignment List (October 2026 release), J Crocker reassigns Medicare benefits to 5 organizations: Massachusetts General Physicians Organization Inc (Boston, MA), The General Hospital Corporation (Boston, MA), Mass General Brigham Urgent Care LLC (Brookline, MA), Personalmds, LLC (Brookline, MA) and Mass General Brigham Medical Group Northern Massachusetts Inc (Salem, MA). 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 J Crocker's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does J Crocker accept?

Health plans from Taro Health list J Crocker 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 J Crocker affiliated with any hospitals?

According to CMS data, J Crocker is affiliated with Newton-Wellesley Hospital and Brigham And Women's Hospital.

When was this NPI record last updated?

The NPPES record for J Crocker was last updated on February 7, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.