2026 NPPES data Obstetrics Physician NPI 1518253350 M.D.
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EMILY WU, M.D.

Obstetrics Physician in WORCESTER, 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
450
Medicare Part D claims · 160 beneficiaries · Obstetrics Physician avg: 319
Generic prescribing
70%
generic claims · 30% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
97.0218/100
▲ 14 pts above national avg 83.1 · [object Object]
What the federal data reveals: EMILY WU, M.D. is a Obstetrics Physician ([object Object]) practicing in WORCESTER, Massachusetts with a Medicare Part D prescribing footprint of 450 claims across 160 beneficiaries — 30% brand-name prescribing . Their CMS MIPS Final Score of 97.0218/100 (national average: 83.1) reflects performance across Quality, Cost, Interoperability, and Improvement Activities .

What stands out: EMILY WU, M.D. reported a CMS MIPS final score of 97.0218 out of 100, above the 83.1 national average, and filed 450 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)

EMILY WU, M.D. 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).

EMILY WU, M.D. at a glance

High performer (top quartile)

NPI registry status

Active

Issued 06/21/2011

NPI 1518253350

Primary specialty

Obstetrics Physician

Niche

1,402 US NPIs in this specialty

Medicare Part D claims

450 41% vs specialty avg

2023 prescription claims

Specialty avg: 319

MIPS final score

97.0218/100 13.921800000000005% pts

Exceptional band

vs 83.1 national avg

Specialty distribution in Massachusetts

How Obstetrics Physician compares to other specialties among Massachusetts providers

Massachusetts providers

Obstetrics Physician share within Massachusetts

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

Medicare quality performance — MIPS

EMILY WU, M.D.'s 2023 MIPS final score plotted against the Obstetrics Physician national average

High performer (top quartile)
MIPS Final Score
97.0218/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Obstetrics Physician) — 97.0218/100 vs national avg 83.1

0%100%National avg83%97%
MIPS final score (Obstetrics Physician) — 97.0218/100 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).

EMILY WU, M.D. is a Obstetrics Physician provider practicing in WORCESTER, Massachusetts, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1518253350. 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.

EMILY WU, M.D. appears in the CMS NPPES registry as a Obstetrics Physician provider holding M.D. credentials at 119 BELMONT ST, WORCESTER, MA, 01605, with a listed phone of (508) 334-9840. NPI 1518253350 was issued on 06/21/2011. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what WU 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 450 prescription claims written by this provider, covering 160 Medicare beneficiaries and totaling roughly $119K in drug spend, split 30% brand-name and 70% generic by claim count. 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 97.0218/100 for the 2023 performance year (Quality 78.0983), compared with the national average of 83.1.

Obstetrics Physician is a narrow specialty nationwide, with 1,402 enrolled providers across 54 states and an average of 319 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

119 BELMONT ST
WORCESTER, MA 01605

Provider Details

NPI 1518253350
Specialty Obstetrics Physician
Credentials M.D.
Gender Female
NPI Issued 06/21/2011

CMS Quality Score (MIPS)

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

97.0218
Final Score
Avg: 83.1
78.0983
Quality
100
Promoting Interoperability

Reporting: Alternative Payment Model

Hospital and facility affiliations

Facilities where EMILY WU, M.D. 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.

UMASS MEMORIAL MEDICAL GROUP INC
WORCESTER, 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 EMILY WU, M.D.. To verify EMILY WU, M.D.'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.

Brand vs generic prescribing mix · Above average

EMILY WU, M.D. — brand share 30.0%
Specialty average (est.)

30% brand-name claims vs 70% generic, on 450 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.

450
Total Claims
$119K
Total Drug Cost
160
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
779
Total Day Supply
21,365
Brand vs Generic
30% brand / 70% generic
Brand Drug Cost
$89K
Generic Drug Cost
$30K
Antibiotic Claims
69

Patient Demographics

Average Patient Age
74.7 years
Avg HCC Risk Score
1.28
Gender Split
100% female / 0% male
Age Distribution
<65: 19, 65-74: 59, 75-84: 59, 85+: 23

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Estradiol
112
Myrbetriq
Mirabegron
69
Gemtesa
Vibegron
46
Trospium Chloride Er
Trospium Chloride
43
Solifenacin Succinate
39
Cephalexin
19
Nitrofurantoin Mono-Macro
Nitrofurantoin Monohyd/M-Cryst
18
Sulfamethoxazole-Trimethoprim
Sulfamethoxazole/Trimethoprim
16
Tolterodine Tartrate Er
Tolterodine Tartrate
11

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

Obstetrics Physician Overview

How EMILY WU, M.D. fits within the Obstetrics Physician landscape nationally.

1,402
Obstetrics Physician Providers in US
54
States with Obstetrics Physician
319
Avg Claims per Provider

EMILY WU, M.D.'s 450 claims are above the specialty average of 319.

Nearby Obstetrics Physician Providers in Massachusetts

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

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

Frequently Asked Questions

What is EMILY WU, M.D.'s specialty?
EMILY WU, M.D. specializes in Obstetrics Physician and practices in WORCESTER, Massachusetts. Credentials: M.D..
How much does EMILY WU, M.D. prescribe under Medicare Part D?
In 2023, EMILY WU, M.D. wrote 450 Medicare Part D claims totaling $119K in drug costs for 160 beneficiaries.
What is EMILY WU, M.D.'s Medicare quality score?
EMILY WU, M.D. has a CMS MIPS Final Score of 97.0218/100 (Quality: 78.0983). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is EMILY WU, M.D. located?
EMILY WU, M.D. is located at 119 BELMONT ST, WORCESTER, MA, 01605. Phone: (508) 334-9840.
What is EMILY WU, M.D.'s NPI number?
EMILY WU, M.D.'s National Provider Identifier (NPI) is 1518253350, issued on 06/21/2011.
Does EMILY WU, M.D. prescribe more brand-name or generic drugs?
EMILY WU, M.D.'s prescribing is 30% brand-name and 70% generic drugs by claim count, with $89K in brand drug costs.
How many Obstetrics Physician providers are there in the US?
There are 1,402 Obstetrics Physician providers across 54 states in the US. The average Obstetrics Physician provider writes 319 Medicare Part D claims per year.
What drugs does EMILY WU, M.D. prescribe most often?
Based on 2023 Medicare Part D data, EMILY WU, M.D.'s most frequently prescribed drugs include Estradiol, Myrbetriq, Gemtesa. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does EMILY WU, M.D. accept Medicare?
EMILY WU, M.D. appears in CMS Medicare data with 450 Part D claims and 160 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify EMILY WU, M.D.'s credentials?
EMILY WU, M.D.'s NPI is 1518253350 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

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