2026 NPPES data Surgical Physician Assistant NPI 1225424591
Verify on CMS →

CASSANDRA TANG

Surgical Physician Assistant in NEWTON, 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
571
Medicare Part D claims · 207 beneficiaries · Surgical Physician Assistant avg: 316
MIPS score
75.075/100
▼ 8 pts below national avg 83.1 · [object Object]

What the federal data shows

CASSANDRA TANG reported a CMS MIPS final score of 75.075/100 — below the 83.1 national average — and filed 571 Medicare Part D claims in 2023.

75.075/100
MIPS score · -8 vs avg
571
Part D claims, 2023

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.

CASSANDRA TANG's MIPS score vs every scored U.S. clinician

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

75 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

What does the federal data show about CASSANDRA TANG?

Below national average

NPI registry status

Active

Issued 04/13/2015

NPI 1225424591

Primary specialty

Surgical Physician Assistant

Mid-sized

16,119 US NPIs in this specialty

Medicare Part D claims

571 81% vs specialty avg

2023 prescription claims

Specialty avg: 316

MIPS final score

75.075/100 8.024999999999991% pts

Above neutral band

vs 83.1 national avg

Specialty distribution in Massachusetts

How Surgical Physician Assistant compares to other specialties among Massachusetts providers

Massachusetts providers

Surgical Physician Assistant share within Massachusetts

1. Surgical Physician Assistant42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Surgical Physician Assistant share within Massachusetts

Medicare quality performance — MIPS

CASSANDRA TANG's 2023 MIPS final score plotted against the Surgical Physician Assistant national average

Below national average
MIPS Final Score
75.075/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Surgical Physician Assistant) — 75.075/100 vs national avg 83.1

0%100%National avg83%75.1%
MIPS final score (Surgical Physician Assistant) — 75.075/100 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).

CASSANDRA TANG appears in the CMS NPPES registry as a Surgical Physician Assistant provider at 2000 WASHINGTON ST, NEWTON, MA, 02462, with a listed phone of (617) 964-0024. NPI 1225424591 was issued on 04/13/2015. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what TANG 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 571 prescription claims written by this provider, covering 207 Medicare beneficiaries and totaling roughly $8K in drug spend, with an opioid prescribing rate of 7.9%. 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 75.075/100 for the 2023 performance year (Quality 52.703, Cost 64.2137), compared with the national average of 83.1.

Surgical Physician Assistant is a mid-sized specialty nationwide, with 16,119 enrolled providers across 54 states and an average of 316 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

2000 WASHINGTON ST
NEWTON, MA 02462

Provider Details

NPI 1225424591
Specialty Surgical Physician Assistant
Gender Female
NPI Issued 04/13/2015

CMS Quality Score (MIPS)

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

75.075
Final Score
Avg: 83.1
52.703
Quality
64.2137
Cost
100
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where CASSANDRA TANG 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.

NORTH FLORIDA SURGEONS, PA
JACKSONVILLE, FL

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 CASSANDRA TANG. To verify CASSANDRA TANG'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.

571
Total Claims
$8K
Total Drug Cost
207
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
617
Total Day Supply
14,049
Generic Drug Cost
$8K
Opioid Claims
45 (7.9% rate)

Patient Demographics

Average Patient Age
71.8 years
Avg HCC Risk Score
0.92
Gender Split
63% female / 37% male

Top Prescribed Drugs (Medicare Part D)

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

What CASSANDRA TANG prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Gabapentin
136
Diclofenac Sodium
106
Methylprednisolone
66
Cyclobenzaprine Hcl
52
Methocarbamol
45
Celecoxib
44
Oxycodone-Acetaminophen
Oxycodone Hcl/Acetaminophen
24
Meloxicam
23
Pregabalin
18
Alprazolam
16

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

Surgical Physician Assistant Overview

How CASSANDRA TANG fits within the Surgical Physician Assistant landscape nationally.

16,119
Surgical Physician Assistant Providers in US
54
States with Surgical Physician Assistant
316
Avg Claims per Provider

CASSANDRA TANG's 571 claims are above the specialty average of 316.

Nearby Surgical Physician Assistant Providers in Massachusetts

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

Compare Surgical Physician Assistant nationally: see state-by-state distribution →

Frequently Asked Questions

What is CASSANDRA TANG's specialty?
CASSANDRA TANG specializes in Surgical Physician Assistant and practices in NEWTON, Massachusetts.
How much does CASSANDRA TANG prescribe under Medicare Part D?
In 2023, CASSANDRA TANG wrote 571 Medicare Part D claims totaling $8K in drug costs for 207 beneficiaries.
What is CASSANDRA TANG's Medicare quality score?
CASSANDRA TANG has a CMS MIPS Final Score of 75.075/100 (Quality: 52.703, Cost: 64.2137). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is CASSANDRA TANG located?
CASSANDRA TANG is located at 2000 WASHINGTON ST, NEWTON, MA, 02462. Phone: (617) 964-0024.
What is CASSANDRA TANG's NPI number?
CASSANDRA TANG's National Provider Identifier (NPI) is 1225424591, issued on 04/13/2015.
Does CASSANDRA TANG prescribe opioids?
Yes, CASSANDRA TANG had 45 opioid claims in 2023 with an opioid prescribing rate of 7.9%.
How many Surgical Physician Assistant providers are there in the US?
There are 16,119 Surgical Physician Assistant providers across 54 states in the US. The average Surgical Physician Assistant provider writes 316 Medicare Part D claims per year.
What drugs does CASSANDRA TANG prescribe most often?
Based on 2023 Medicare Part D data, CASSANDRA TANG's most frequently prescribed drugs include Gabapentin, Diclofenac Sodium, Methylprednisolone. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does CASSANDRA TANG accept Medicare?
CASSANDRA TANG appears in CMS Medicare data with 571 Part D claims and 207 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify CASSANDRA TANG's credentials?
CASSANDRA TANG's NPI is 1225424591. 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