2026 NPPES data Psychiatry Physician NPI 1538327523 M.D., M.ENG.
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YING CAO, M.D., M.ENG.

Psychiatry Physician in BELMONT, Massachusetts. 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
12
Medicare Part D claims · Psychiatry Physician avg: 1K
MIPS score
75.5277/100
▼ 8 pts below national avg 83.1 · [object Object]

What the federal data shows

YING CAO, M.D., M.ENG. reported a CMS MIPS final score of 75.5277/100 — below the 83.1 national average — and filed 12 Medicare Part D claims in 2023.

75.5277/100
MIPS score · -8 vs avg
12
Part D claims, 2023
Likely
board-certified (heuristic)

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.

YING CAO, M.D., M.ENG.'s MIPS score vs every scored U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023 — the federal quality measure

76 15th percentile higher than 15% of 477,587 scored providers

0–10: 8,684 scored providers (2%). Below this entry. 10–20: 3,008 scored providers (1%). Below this entry. 20–30: 3,069 scored providers (1%). Below this entry. 30–40: 2,746 scored providers (1%). Below this entry. 40–50: 2,928 scored providers (1%). Below this entry. 50–60: 5,882 scored providers (1%). Below this entry. 60–70: 13,906 scored providers (3%). Below this entry. 70–80: 118,074 scored providers (25%). This entry sits in this band. 80–90: 129,887 scored providers (27%). Above this entry. 90–100: 189,403 scored providers (40%). Above this entry. This provider 0 100 every MIPS-scored clinician, bucketed by value

Each bar is a band; taller bars hold more scored providers. 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.

Source CMS Merit-based Incentive Payment System (MIPS) · 2023

Board certification likely (heuristic — not verified)

YING CAO, M.D., M.ENG. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 1 hospital affiliation — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about YING CAO, M.D., M.ENG.?

Below national average

NPI registry status

Active

Issued 05/28/2008

NPI 1538327523

Primary specialty

Psychiatry Physician

High-volume

53,104 US NPIs in this specialty

Medicare Part D claims

12 99% vs specialty avg

2023 prescription claims

Specialty avg: 1,038

MIPS final score

75.5277/100 7.5722999999999985% pts

Above neutral band

vs 83.1 national avg

Specialty distribution in Massachusetts

How Psychiatry Physician compares to other specialties among Massachusetts providers

Massachusetts providers

Psychiatry Physician share within Massachusetts

1. Psychiatry Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Psychiatry Physician share within Massachusetts

Medicare quality performance — MIPS

YING CAO, M.D., M.ENG.'s 2023 MIPS final score plotted against the Psychiatry Physician national average

Below national average
MIPS Final Score
75.5277/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Psychiatry Physician) — 75.5277/100 vs national avg 83.1

0%100%National avg83%75.5%
MIPS final score (Psychiatry Physician) — 75.5277/100 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).

YING CAO, M.D., M.ENG. appears in the CMS NPPES registry as a Psychiatry Physician provider holding M.D., M.ENG. credentials at 115 MILL ST, BELMONT, MA, 02478, with a listed phone of (617) 855-2000. NPI 1538327523 was issued on 05/28/2008. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what CAO 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 12 prescription claims written by this provider, covering N/A Medicare beneficiaries and totaling roughly $867 in drug spend. 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 75.5277/100 for the 2023 performance year (Quality 64.1481, Cost 37.611), compared with the national average of 83.1.

Psychiatry Physician is a high-volume specialty nationwide, with 53,104 enrolled providers across 56 states and an average of 1,038 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

115 MILL ST
BELMONT, MA 02478

Provider Details

NPI 1538327523
Specialty Psychiatry Physician
Credentials M.D., M.ENG.
Gender Female
NPI Issued 05/28/2008

CMS Quality Score (MIPS)

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

75.5277
Final Score
Avg: 83.1
64.1481
Quality
37.611
Cost
100
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where YING CAO, M.D., M.ENG. 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.

THE MCLEAN HOSPITAL CORPORATION
BELMONT, MA

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

License & disciplinary context — Massachusetts BORIM 2023 annual report

Aggregate state board data only — NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~38K Massachusetts medical licensees in 2023 — they are NOT specific to YING CAO, M.D., M.ENG.. To verify YING CAO, M.D., M.ENG.'s current license status, search the BORIM public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

80
Total board actions, Massachusetts 2023
Across 78 cases
2.11
Actions per 1,000 licensees
Massachusetts statewide rate
probation
Most common action type
29 cases

BORIM publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Massachusetts disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Medicare Part D Prescribing Data

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

12
Total Claims
$867
Total Drug Cost
N/A
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
30
Total Day Supply
900
Brand Drug Cost
$0
Generic Drug Cost
$867

Patient Demographics

Average Patient Age
67.0 years
Avg HCC Risk Score
0.85

Psychiatry Physician Overview

How YING CAO, M.D., M.ENG. fits within the Psychiatry Physician landscape nationally.

53,104
Psychiatry Physician Providers in US
56
States with Psychiatry Physician
1,038
Avg Claims per Provider

YING CAO, M.D., M.ENG.'s 12 claims are below the specialty average of 1,038.

Nearby Psychiatry Physician Providers in Massachusetts

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

Compare Psychiatry Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is YING CAO, M.D., M.ENG.'s specialty?
YING CAO, M.D., M.ENG. specializes in Psychiatry Physician and practices in BELMONT, Massachusetts. Credentials: M.D., M.ENG..
How much does YING CAO, M.D., M.ENG. prescribe under Medicare Part D?
In 2023, YING CAO, M.D., M.ENG. wrote 12 Medicare Part D claims totaling $867 in drug costs for N/A beneficiaries.
What is YING CAO, M.D., M.ENG.'s Medicare quality score?
YING CAO, M.D., M.ENG. has a CMS MIPS Final Score of 75.5277/100 (Quality: 64.1481, Cost: 37.611). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is YING CAO, M.D., M.ENG. located?
YING CAO, M.D., M.ENG. is located at 115 MILL ST, BELMONT, MA, 02478. Phone: (617) 855-2000.
What is YING CAO, M.D., M.ENG.'s NPI number?
YING CAO, M.D., M.ENG.'s National Provider Identifier (NPI) is 1538327523, issued on 05/28/2008.
How many Psychiatry Physician providers are there in the US?
There are 53,104 Psychiatry Physician providers across 56 states in the US. The average Psychiatry Physician provider writes 1,038 Medicare Part D claims per year.
Does YING CAO, M.D., M.ENG. accept Medicare?
YING CAO, M.D., M.ENG. appears in CMS Medicare data with 12 Part D claims and N/A Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify YING CAO, M.D., M.ENG.'s credentials?
YING CAO, M.D., M.ENG.'s NPI is 1538327523 with credentials M.D., M.ENG.. 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