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SIDNEY ROBERT BLOCK MD
NPI 1841290376
Internal Medicine - Rheumatology in Bangor, ME

Active since July 27, 2005PECOS Enrolled
98.06/100
CMS Quality Rating
275 UNION ST, BANGOR, ME 04401(207) 945-9442(207) 942-5915 Get Directions Write a Review

NPPES record last updated: May 16, 2008. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Sidney Robert Block Md NPPES

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

SIDNEY ROBERT BLOCK MD (NPI 1841290376) is an individual rheumatology provider in Bangor, Maine, licensed in Maine (008060) and active in the NPI registry since July 2005. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1841290376
Entity TypeIndividualMale
Primary Taxonomy207RR0500X
Provider Legal NameSIDNEY ROBERT BLOCKCredential: MD
Location Address275 UNION STBangor, ME 04401-4606
Mailing Address275 Union StBangor, ME 04401-4606 · (207) 945-9442 · Fax (207) 942-5915
Phone(207) 945-9442
Fax(207) 942-5915
Sole ProprietorNo
Enumeration DateJuly 27, 2005
Last NPPES UpdateMay 16, 2008
✔ NPI 1841290376 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · RheumatologyAllopathic & Osteopathic Physicians
Taxonomy Code207RR0500X
License✔ Licensed in ME · 008060
Definition
An internist who treats diseases of joints, muscle, bones and tendons. This specialist diagnoses and treats arthritis, back pain, muscle strains, common athletic injuries and collagen diseases.
275 UNION ST, Bangor, ME 04401
Open in Google Maps ↗

Other Identifiers 3

Medicare UPINC66351
Medicaid312020099ME
Medicare ID-Type Unspecified012866ME

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Sidney Robert Block 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 Reassignment

Medicare enrollment records show Sidney Block reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Mainehealth
29 mi
Critical Access
118 NORTHPORT AVE
Belfast, ME 04915
  • Reassigned Medicare billing, Maine enrollment
  • Medicare enrollment name: Waldo County General Hospital
  • 82 clinicians in this Medicare group
NPI 1841397932 (207) 338-2500

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 04401 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
$123.23 typical visit price
range $53.26 – $162.77
Typical copayment $30.80 (range $13.31 – $40.69)
Most-billed visit code 99204
Established Patient
$94.60 typical visit price
range $16.90 – $132.79
Typical copayment $23.65 (range $4.22 – $33.19)
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.

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

Other Providers at the Same Location NPPES

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

BLOCK & GRATWICK, PA
Internal Medicine (Rheumatology)
275 UNION ST
BANGOR, ME 04401
Penobscot County (207) 945-9442

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 Sidney Block's NPI number?

The NPI number for Sidney Block is 1841290376. It was assigned to this individual provider in the NPPES registry on July 27, 2005.

Where is Sidney Block located?

Sidney Block practices at 275 Union St, Bangor, ME 04401. The listed phone number is (207) 945-9442.

What is Sidney Block's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Rheumatology, with taxonomy code 207RR0500X.

Is Sidney Block enrolled in Medicare?

Yes. Sidney Block is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Sidney Block's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Sidney Block reassigns Medicare benefits to Mainehealth (Belfast, ME). The 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 Sidney Block's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Sidney Block was last updated on May 16, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.