NPI registry status
Active
2026 NPPES data Emergency Medicine Physician NPI 1083751952 M.D.
Verify on CMS → Sally Chao, M.D.
Emergency Medicine Physician in Bridgeport, Connecticut.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 66,293 in Emergency Medicine Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
117
Medicare Part D claims · 81 beneficiaries · Emergency Medicine Physician avg: 355
Generic prescribing
89%
generic claims · 11% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Sally Chao, M.D. filed 117 Medicare Part D claims in 2024 as an Emergency Medicine Physician in Bridgeport, Connecticut, prescribing 89% generic.
- 117
- Part D claims, 2024
- 89%
- generic prescribing
- ≥34th
- pct by Part D claim volume (lower-bound band)
Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) - no proprietary rating or editorial opinion is applied.
Federal trust snapshot
What official records show about Sally Chao, M.D.
Federal records show an active NPI with Medicare Part D prescribing activity — verifiable registry data, not a proprietary rating.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1083751952), first enumerated 01/31/2007.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 117 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
Board certification signal
Practices in an ABMS-board-eligible specialty; board certification not confirmed in federal records.
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
CMS NPPES provider registry desk
NPI 1083751952 · Emergency Medicine Physician
NPI-10 · ENUM-MID · TAX-MEGA · RX-LIGHT · BOOK-LIGHT · PHOTO-ENUM
- NPI-10 1083751952
- ENUM-MID 2007
- TAX-MEGA 66K Emergency Medicine
- RX-LIGHT 117
- BOOK-LIGHT 761 in Connecticut
- PHOTO-ENUM Jason Christensen, DO · 2007
Sally Chao, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
117 ≥ 34th percentile 34% of 1,416,883 prescribers are in lower value bands
Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
The percentile is a conservative 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2024
◑
Board-eligible specialty (heuristic, not verified)
Sally Chao, M.D. practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Sally Chao, M.D.?
Quality data not reportedPrimary specialty
Emergency Medicine Physician
Medicare Part D claims
117 67% vs specialty avg
Specialty distribution in Connecticut
How Emergency Medicine Physician compares to other specialties among Connecticut providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Emergency Medicine Physician. Verify directly:
How MIPS and board certification work
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).
Practice Address
Provider Details
| NPI | 1083751952 |
|---|---|
| Specialty | Emergency Medicine Physician |
| Credentials | M.D. |
| Gender | Female |
| NPI Issued | 01/31/2007 |
Brand vs generic prescribing mix · Typical
Sally Chao, M.D. - brand share 11.0%
Emergency Medicine Physician average
11% brand-name claims vs 89% generic, on 117 2024 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 2024.
117
Total Claims
$2K
Total Drug Cost
81
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 121.667
- Total Day Supply
- 1,534
- Brand vs Generic
- 11% brand / 89% generic
- Brand Drug Cost
- $1K
- Generic Drug Cost
- $811
- Opioid Claims
- 14 (12.0% rate)
- Antibiotic Claims
- 42
Patient Demographics
- Average Patient Age
- 76.4 years
- Avg HCC Risk Score
- 1.42
- Gender Split
- 59% female / 41% male
Emergency Medicine Physician Overview
How Sally Chao, M.D. fits within the Emergency Medicine Physician landscape nationally.
66,293
Emergency Medicine Physician Providers in US
56
States with Emergency Medicine Physician
355
Avg Claims per Provider
Sally Chao, M.D.'s 117 claims are below the specialty average of 355.
Nationwide Emergency Medicine Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Chao, both outside Connecticut so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2007)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Emergency Medicine Physician Providers in Connecticut
Other clinicians with the same primary specialty enrolled in Connecticut, drawn from the same CMS NPPES roster as Chao.
One of 761 Emergency Medicine Physician providers enrolled in Connecticut, 5 are shown here.
Dr. Carol Abbatiello
D.O.
Hartford, CT
Dr. Lincoln Abbott
MD
Hartford, CT
Dr. Wayne Abrahams
MD
Waterbury, CT
Dr. Theresa Adams
M.D.
New London, CT
Dr. Doreen Agboh
MD
New Haven, CT
Compare Emergency Medicine Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Sally Chao, M.D.'s specialty? ▼
Sally Chao, M.D. specializes in Emergency Medicine Physician and practices in Bridgeport, Connecticut. Credentials: M.D..
How much does Sally Chao, M.D. prescribe under Medicare Part D? ▼
In 2024, Sally Chao, M.D. wrote 117 Medicare Part D claims totaling $2K in drug costs for 81 beneficiaries.
Where is Sally Chao, M.D. located? ▼
Sally Chao, M.D. is located at 2800 MAIN ST, Bridgeport, CT, 06606. Phone: (203) 576-5177.
What is Sally Chao, M.D.'s NPI number? ▼
Sally Chao, M.D.'s National Provider Identifier (NPI) is 1083751952, issued on 01/31/2007.
Does Sally Chao, M.D. prescribe more brand-name or generic drugs? ▼
Sally Chao, M.D.'s prescribing is 11% brand-name and 89% generic drugs by claim count, with $1K in brand drug costs.
Does Sally Chao, M.D. prescribe opioids? ▼
Yes, Sally Chao, M.D. had 14 opioid claims in 2024 with an opioid prescribing rate of 12.0%.
How many Emergency Medicine Physician providers are there in the US? ▼
There are 66,293 Emergency Medicine Physician providers across 56 states in the US. The average Emergency Medicine Physician provider writes 355 Medicare Part D claims per year.
Does Sally Chao, M.D. accept Medicare? ▼
Sally Chao, M.D. appears in CMS Medicare data with 117 Part D claims and 81 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Sally Chao, M.D.'s credentials? ▼
Sally Chao, M.D.'s NPI is 1083751952 with credentials M.D.. 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
View source datasets and methodology notes
- 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 (2024). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
- 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 August 2026 (NPPES) / 2024 (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
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of August 2026.