2026 NPPES data Physical Medicine & Rehabilitation Physician NPI 1063633188 D.O.
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BRIAN BAST, D.O.

Physical Medicine & Rehabilitation Physician in NORWALK, Connecticut. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
2K
Medicare Part D claims · 524 beneficiaries · Physical Medicine & Rehabilitation Physician avg: 781
Generic prescribing
97%
generic claims · 3% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
55.1288/100
▼ 28 pts below national avg 83.1 · [object Object]
Industry payments
$36.22
2 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: BRIAN BAST, D.O. is a Physical Medicine & Rehabilitation Physician ([object Object]) practicing in NORWALK, Connecticut with a Medicare Part D prescribing footprint of 2K claims across 524 beneficiaries — 3% brand-name prescribing . Their CMS MIPS Final Score of 55.1288/100 (national average: 83.1) reflects performance across Quality, Cost, Interoperability, and Improvement Activities . Industry payments of $36.22 across 2 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: BRIAN BAST, D.O. reported a CMS MIPS final score of 55.1288 out of 100, below the 83.1 national average, and filed 1,978 Medicare Part D claims in 2023. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

BRIAN BAST, D.O. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 2 hospital affiliations — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

BRIAN BAST, D.O. at a glance

Below national average

NPI registry status

Active

Issued 05/02/2007

NPI 1063633188

Primary specialty

Physical Medicine & Rehabilitation Physician

Mid-sized

15,306 US NPIs in this specialty

Medicare Part D claims

1,978 153% vs specialty avg

2023 prescription claims

Specialty avg: 781

MIPS final score

55.1288/100 27.971199999999996% pts

Mid-tier band

vs 83.1 national avg

Specialty distribution in Connecticut

How Physical Medicine & Rehabilitation Physician compares to other specialties among Connecticut providers

Connecticut providers

Physical Medicine & Rehabilitation Physician share within Connecticut

1. Physical Medicine & Rehabilitation Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Physical Medicine & Rehabilitation Physician share within Connecticut

Medicare quality performance — MIPS

BRIAN BAST, D.O.'s 2023 MIPS final score plotted against the Physical Medicine & Rehabilitation Physician national average

Below national average
MIPS Final Score
55.1288/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Physical Medicine & Rehabilitation Physician) — 55.1288/100 vs national avg 83.1

0%100%National avg83%55.1%
MIPS final score (Physical Medicine & Rehabilitation Physician) — 55.1288/100 vs national avg 83.1

The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.

Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).

BRIAN BAST, D.O. is a Physical Medicine & Rehabilitation Physician provider practicing in NORWALK, Connecticut, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: D.O.. NPI: 1063633188. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

BRIAN BAST, D.O. appears in the CMS NPPES registry as a Physical Medicine & Rehabilitation Physician provider holding D.O. credentials at 761 MAIN AVE, NORWALK, CT, 06851, with a listed phone of (203) 845-2200. NPI 1063633188 was issued on 05/02/2007. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what BAST most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 1,978 prescription claims written by this provider, covering 524 Medicare beneficiaries and totaling roughly $51K in drug spend, split 3% brand-name and 97% generic by claim count, with an opioid prescribing rate of 30.4%. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 55.1288/100 for the 2023 performance year (Quality 40.2342), compared with the national average of 83.1.

Physical Medicine & Rehabilitation Physician is a mid-sized specialty nationwide, with 15,306 enrolled providers across 54 states and an average of 781 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

761 MAIN AVE
NORWALK, CT 06851

Provider Details

NPI 1063633188
Specialty Physical Medicine & Rehabilitation Physician
Credentials D.O.
Gender Male
NPI Issued 05/02/2007

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

55.1288
Final Score
Avg: 83.1
40.2342
Quality
85
Promoting Interoperability

Reporting: Individual

Hospital and facility affiliations

Facilities where BRIAN BAST, D.O. bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" — a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.

ORTHOCONNECTICUT PLLC
DARIEN, CT
REHABILITATION ASSOCIATES INC
FAIRFIELD, CT

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

Industry payments received (2024) — CMS Open Payments transparency data

The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for BRIAN BAST, D.O.. Source: openpaymentsdata.cms.gov.

Total received

$36

Largest payer

Vertos Medical, Inc.

Most common payment type

Food and Beverage

Industry payments are not necessarily indicators of bias — they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.

Brand vs generic prescribing mix · Generic-heavy

BRIAN BAST, D.O. — brand share 3.0%
Specialty average (est.)

3% brand-name claims vs 97% generic, on 1,978 2023 Medicare Part D claims.

The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

1,978
Total Claims
$51K
Total Drug Cost
524
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
2,192
Total Day Supply
50,637
Brand vs Generic
3% brand / 97% generic
Brand Drug Cost
$19K
Generic Drug Cost
$33K
Opioid Claims
601 (30.4% rate)

Patient Demographics

Average Patient Age
75.2 years
Avg HCC Risk Score
1.13
Gender Split
59% female / 41% male
Age Distribution
<65: 26, 65-74: 216, 75-84: 215, 85+: 67

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

Drug Claims
Gabapentin
551
Oxycodone Hcl
196
Meloxicam
175
Tramadol Hcl
145
Methylprednisolone
104
Prednisone
89
Tramadol Hcl-Acetaminophen
Tramadol Hcl/Acetaminophen
75
Baclofen
74
Pregabalin
58
Duloxetine Hcl
55

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Physical Medicine & Rehabilitation Physician Overview

How BRIAN BAST, D.O. fits within the Physical Medicine & Rehabilitation Physician landscape nationally.

15,306
Physical Medicine & Rehabilitation Physician Providers in US
54
States with Physical Medicine & Rehabilitation Physician
781
Avg Claims per Provider

BRIAN BAST, D.O.'s 1,978 claims are above the specialty average of 781.

Nearby Physical Medicine & Rehabilitation Physician Providers in Connecticut

Other clinicians with the same primary specialty enrolled in Connecticut, drawn from the same CMS NPPES roster as BAST.

Compare Physical Medicine & Rehabilitation Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is BRIAN BAST, D.O.'s specialty?
BRIAN BAST, D.O. specializes in Physical Medicine & Rehabilitation Physician and practices in NORWALK, Connecticut. Credentials: D.O..
How much does BRIAN BAST, D.O. prescribe under Medicare Part D?
In 2023, BRIAN BAST, D.O. wrote 1,978 Medicare Part D claims totaling $51K in drug costs for 524 beneficiaries.
What is BRIAN BAST, D.O.'s Medicare quality score?
BRIAN BAST, D.O. has a CMS MIPS Final Score of 55.1288/100 (Quality: 40.2342). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is BRIAN BAST, D.O. located?
BRIAN BAST, D.O. is located at 761 MAIN AVE, NORWALK, CT, 06851. Phone: (203) 845-2200.
What is BRIAN BAST, D.O.'s NPI number?
BRIAN BAST, D.O.'s National Provider Identifier (NPI) is 1063633188, issued on 05/02/2007.
Does BRIAN BAST, D.O. prescribe more brand-name or generic drugs?
BRIAN BAST, D.O.'s prescribing is 3% brand-name and 97% generic drugs by claim count, with $19K in brand drug costs.
Does BRIAN BAST, D.O. prescribe opioids?
Yes, BRIAN BAST, D.O. had 601 opioid claims in 2023 with an opioid prescribing rate of 30.4%.
How many Physical Medicine & Rehabilitation Physician providers are there in the US?
There are 15,306 Physical Medicine & Rehabilitation Physician providers across 54 states in the US. The average Physical Medicine & Rehabilitation Physician provider writes 781 Medicare Part D claims per year.
What drugs does BRIAN BAST, D.O. prescribe most often?
Based on 2023 Medicare Part D data, BRIAN BAST, D.O.'s most frequently prescribed drugs include Gabapentin, Oxycodone Hcl, Meloxicam. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does BRIAN BAST, D.O. accept Medicare?
BRIAN BAST, D.O. appears in CMS Medicare data with 1,978 Part D claims and 524 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify BRIAN BAST, D.O.'s credentials?
BRIAN BAST, D.O.'s NPI is 1063633188 with credentials D.O.. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.

Data Sources

Provider Directory
CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
Specialty Classification
NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
Quality Performance
CMS Merit-based Incentive Payment System (MIPS) — 2023 performance year.
Limitations
Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.

See our complete data methodology for details on how we collect and process government data.

Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).

Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology