2026 NPPES data Nuclear Medicine Physician NPI 1023758018 MD, PHD
Verify on CMS →

JEFFREY XING, MD, PHD

Nuclear Medicine Physician in STANFORD, 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
136
Medicare Part D claims · 48 beneficiaries · Nuclear Medicine Physician avg: 881

What the federal data shows

JEFFREY XING, MD, PHD filed 136 Medicare Part D claims in 2023 as a Nuclear Medicine Physician in STANFORD, California.

136
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.

JEFFREY XING, MD, PHD's Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

136 35th percentile higher than 35% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). This entry sits in this band. 200–400: 182,923 prescribers (13%). Above this entry. 400–600: 90,619 prescribers (7%). Above this entry. 600–800: 56,224 prescribers (4%). Above this entry. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

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.

Source CMS Medicare Part D Prescriber Public Use File · 2023

Board-eligible specialty (heuristic — not verified)

JEFFREY XING, MD, PHD 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 JEFFREY XING, MD, PHD?

Quality data not reported

NPI registry status

Active

Issued 03/30/2022

NPI 1023758018

Primary specialty

Nuclear Medicine Physician

Niche

913 US NPIs in this specialty

Medicare Part D claims

136 85% vs specialty avg

2023 prescription claims

Specialty avg: 881

Specialty distribution in California

How Nuclear Medicine Physician compares to other specialties among California providers

California providers

Nuclear Medicine Physician share within California

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

Specialty board-certification context

Estimated specialty board-certified rate — Nuclear Medicine Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Nuclear Medicine Physician ABMS/AOA estimate

Est. board-certified rate (Nuclear Medicine Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Nuclear Medicine Physician) — ABMS / AOA estimate

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).

JEFFREY XING, MD, PHD appears in the CMS NPPES registry as a Nuclear Medicine Physician provider holding MD, PHD credentials at 300 PASTEUR DRIVE, STANFORD, CA, 94305, with a listed phone of (650) 723-7816. NPI 1023758018 was issued on 03/30/2022. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what XING 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 136 prescription claims written by this provider, covering 48 Medicare beneficiaries and totaling roughly $3K in drug spend, with an opioid prescribing rate of 24.3%. 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.

Nuclear Medicine Physician is a narrow specialty nationwide, with 913 enrolled providers across 48 states and an average of 881 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

300 PASTEUR DRIVE
STANFORD, CA 94305

Provider Details

NPI 1023758018
Specialty Nuclear Medicine Physician
Credentials MD, PHD
Gender Male
NPI Issued 03/30/2022

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 JEFFREY XING, MD, PHD. To verify JEFFREY XING, MD, PHD'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.

Medicare Part D Prescribing Data

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

136
Total Claims
$3K
Total Drug Cost
48
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
140
Total Day Supply
1,504
Generic Drug Cost
$2K
Opioid Claims
33 (24.3% rate)
Antibiotic Claims
17

Patient Demographics

Average Patient Age
70.3 years
Avg HCC Risk Score
2.42
Gender Split
69% female / 31% male

Top Prescribed Drugs (Medicare Part D)

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

What JEFFREY XING, MD, PHD 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
Oxycodone Hcl
27
Ondansetron Odt
Ondansetron
25
Omeprazole
17

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

Nuclear Medicine Physician Overview

How JEFFREY XING, MD, PHD fits within the Nuclear Medicine Physician landscape nationally.

913
Nuclear Medicine Physician Providers in US
48
States with Nuclear Medicine Physician
881
Avg Claims per Provider

JEFFREY XING, MD, PHD's 136 claims are below the specialty average of 881.

Nearby Nuclear Medicine Physician Providers in California

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

Compare Nuclear Medicine Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is JEFFREY XING, MD, PHD's specialty?
JEFFREY XING, MD, PHD specializes in Nuclear Medicine Physician and practices in STANFORD, California. Credentials: MD, PHD.
How much does JEFFREY XING, MD, PHD prescribe under Medicare Part D?
In 2023, JEFFREY XING, MD, PHD wrote 136 Medicare Part D claims totaling $3K in drug costs for 48 beneficiaries.
Where is JEFFREY XING, MD, PHD located?
JEFFREY XING, MD, PHD is located at 300 PASTEUR DRIVE, STANFORD, CA, 94305. Phone: (650) 723-7816.
What is JEFFREY XING, MD, PHD's NPI number?
JEFFREY XING, MD, PHD's National Provider Identifier (NPI) is 1023758018, issued on 03/30/2022.
Does JEFFREY XING, MD, PHD prescribe opioids?
Yes, JEFFREY XING, MD, PHD had 33 opioid claims in 2023 with an opioid prescribing rate of 24.3%.
How many Nuclear Medicine Physician providers are there in the US?
There are 913 Nuclear Medicine Physician providers across 48 states in the US. The average Nuclear Medicine Physician provider writes 881 Medicare Part D claims per year.
What drugs does JEFFREY XING, MD, PHD prescribe most often?
Based on 2023 Medicare Part D data, JEFFREY XING, MD, PHD's most frequently prescribed drugs include Oxycodone Hcl, Ondansetron Odt, Omeprazole. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does JEFFREY XING, MD, PHD accept Medicare?
JEFFREY XING, MD, PHD appears in CMS Medicare data with 136 Part D claims and 48 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify JEFFREY XING, MD, PHD's credentials?
JEFFREY XING, MD, PHD's NPI is 1023758018 with credentials MD, PHD. 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.
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