2026 NPPES data Orthopaedic Surgery Physician NPI 1568993004
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DIANA LEE

Orthopaedic Surgery Physician in SAN JOSE, California. 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
332
Medicare Part D claims · 151 beneficiaries · Orthopaedic Surgery Physician avg: 324
Generic prescribing
96%
generic claims · 4% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
85.1816/100
▲ 2 pts above national avg 83.1 · [object Object]

What the federal data shows

DIANA LEE reported a CMS MIPS final score of 85.1816/100 — above the 83.1 national average — and filed 332 Medicare Part D claims in 2023.

85.1816/100
MIPS score · +2 vs avg
332
Part D claims, 2023
96%
generic prescribing
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.

DIANA LEE's MIPS score vs every scored U.S. clinician

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

85 49th percentile higher than 49% 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%). Below this entry. 80–90: 129,887 scored providers (27%). This entry sits in this band. 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)

DIANA LEE 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).

What does the federal data show about DIANA LEE?

High performer (top quartile)

NPI registry status

Active

Issued 03/27/2017

NPI 1568993004

Primary specialty

Orthopaedic Surgery Physician

Mid-sized

25,781 US NPIs in this specialty

Medicare Part D claims

332 2% vs specialty avg

2023 prescription claims

Specialty avg: 324

MIPS final score

85.1816/100 2.0816000000000088% pts

Above neutral band

vs 83.1 national avg

Specialty distribution in California

How Orthopaedic Surgery Physician compares to other specialties among California providers

California providers

Orthopaedic Surgery Physician share within California

1. Orthopaedic Surgery Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Orthopaedic Surgery Physician share within California

Medicare quality performance — MIPS

DIANA LEE's 2023 MIPS final score plotted against the Orthopaedic Surgery Physician national average

High performer (top quartile)
MIPS Final Score
85.1816/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Orthopaedic Surgery Physician) — 85.1816/100 vs national avg 83.1

0%100%National avg83%85.2%
MIPS final score (Orthopaedic Surgery Physician) — 85.1816/100 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).

DIANA LEE appears in the CMS NPPES registry as a Orthopaedic Surgery Physician provider at 270 INTERNATIONAL CIRCLE, SAN JOSE, CA, 95119, with a listed phone of (408) 972-3303. NPI 1568993004 was issued on 03/27/2017. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what LEE 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 332 prescription claims written by this provider, covering 151 Medicare beneficiaries and totaling roughly $7K in drug spend, split 4% brand-name and 96% generic by claim count, with an opioid prescribing rate of 28.6%. 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 85.1816/100 for the 2023 performance year (Quality 85.9632, Cost 57.6022), compared with the national average of 83.1.

Orthopaedic Surgery Physician is a mid-sized specialty nationwide, with 25,781 enrolled providers across 56 states and an average of 324 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

270 INTERNATIONAL CIRCLE
SAN JOSE, CA 95119

Provider Details

NPI 1568993004
Specialty Orthopaedic Surgery Physician
Gender Female
NPI Issued 03/27/2017

CMS Quality Score (MIPS)

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

85.1816
Final Score
Avg: 83.1
85.9632
Quality
57.6022
Cost
100
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where DIANA LEE 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.

PERMANENTE MEDICAL GROUP INC
SAN JOSE, CA
PROVIDENCE MEDICAL FOUNDATION
PETALUMA, CA

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 — California MBC 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 ~150K California medical licensees in 2023 — they are NOT specific to DIANA LEE. To verify DIANA LEE's current license status, search the MBC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

576
Total board actions, California 2023
Across 556 cases
3.84
Actions per 1,000 licensees
California statewide rate
probation
Most common action type
186 cases

MBC 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 California disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Generic-heavy

DIANA LEE — brand share 4.0%
Specialty average (est.)

4% brand-name claims vs 96% generic, on 332 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.

332
Total Claims
$7K
Total Drug Cost
151
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
348
Total Day Supply
5,307
Brand vs Generic
4% brand / 96% generic
Brand Drug Cost
$2K
Generic Drug Cost
$5K
Opioid Claims
95 (28.6% rate)
Antibiotic Claims
72

Patient Demographics

Average Patient Age
72.6 years
Avg HCC Risk Score
1.20
Gender Split
62% female / 38% male

Top Prescribed Drugs (Medicare Part D)

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

What DIANA LEE 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
Amoxicillin
40
Ondansetron Odt
Ondansetron
37
Celecoxib
34
Oxycodone Hcl
31
Pantoprazole Sodium
30
Tramadol Hcl
28
Oxycodone-Acetaminophen
Oxycodone Hcl/Acetaminophen
26
Cephalexin
24
Meloxicam
18
Naloxone Hcl
16

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

Orthopaedic Surgery Physician Overview

How DIANA LEE fits within the Orthopaedic Surgery Physician landscape nationally.

25,781
Orthopaedic Surgery Physician Providers in US
56
States with Orthopaedic Surgery Physician
324
Avg Claims per Provider

DIANA LEE's 332 claims are above the specialty average of 324.

Nearby Orthopaedic Surgery Physician Providers in California

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

Compare Orthopaedic Surgery Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is DIANA LEE's specialty?
DIANA LEE specializes in Orthopaedic Surgery Physician and practices in SAN JOSE, California.
How much does DIANA LEE prescribe under Medicare Part D?
In 2023, DIANA LEE wrote 332 Medicare Part D claims totaling $7K in drug costs for 151 beneficiaries.
What is DIANA LEE's Medicare quality score?
DIANA LEE has a CMS MIPS Final Score of 85.1816/100 (Quality: 85.9632, Cost: 57.6022). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is DIANA LEE located?
DIANA LEE is located at 270 INTERNATIONAL CIRCLE, SAN JOSE, CA, 95119. Phone: (408) 972-3303.
What is DIANA LEE's NPI number?
DIANA LEE's National Provider Identifier (NPI) is 1568993004, issued on 03/27/2017.
Does DIANA LEE prescribe more brand-name or generic drugs?
DIANA LEE's prescribing is 4% brand-name and 96% generic drugs by claim count, with $2K in brand drug costs.
Does DIANA LEE prescribe opioids?
Yes, DIANA LEE had 95 opioid claims in 2023 with an opioid prescribing rate of 28.6%.
How many Orthopaedic Surgery Physician providers are there in the US?
There are 25,781 Orthopaedic Surgery Physician providers across 56 states in the US. The average Orthopaedic Surgery Physician provider writes 324 Medicare Part D claims per year.
What drugs does DIANA LEE prescribe most often?
Based on 2023 Medicare Part D data, DIANA LEE's most frequently prescribed drugs include Amoxicillin, Ondansetron Odt, Celecoxib. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does DIANA LEE accept Medicare?
DIANA LEE appears in CMS Medicare data with 332 Part D claims and 151 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify DIANA LEE's credentials?
DIANA LEE's NPI is 1568993004. 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