Dr. Glen L. Xiong, MD

  • Woodland, CA
  • Psychiatrist
NPI1114945102PAC ID6103829007
Medicare services, 2024
1,185
Medicare patients, 2024
522
Part D claims, 2024
10,449
Publications
66
Clinical trials
2
Practice address
678 3rd St, Woodland, CA 95695
Practice phone
Call (530) 662-9643
Professional email
Get professional email
Personal email
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Mobile number
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Social profiles

Primary practice

Woodland Nursing and Rehabilitation

Woodland, California

See all 11 affiliations

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Dr. Glen L. Xiong is a psychiatrist in Woodland, California

Dr. Xiong practices at Woodland Nursing and Rehabilitation in Woodland, California.

Dr. Xiong's NPI, 1114945102, was assigned on July 17, 2006. Dr. Xiong graduated from UC Davis School of Medicine in 2001. Dr. Xiong holds California license A93942.

NPI and contact details
Medicare PAC ID
6103829007
NPI enumeration date
July 17, 2006
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(530) 662-9643
Professional email
Get email
Personal email
Get email
Mobile number
Get number
Sex
Male
Estimated age
51
Medical school graduation
2001

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Glen L. Xiong practices at Woodland Nursing and Rehabilitation in Woodland, California

Dr. Xiong's primary practice is Woodland Nursing and Rehabilitation, at 678 3rd St, Woodland, CA 95695 in Yolo County. The practice phone is (530) 662-9643.

  • Woodland Nursing and Rehabilitation
    678 3rd St, Woodland, CA 95695 · Yolo CountyPhone(530) 662-9643

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Dr. Glen L. Xiong is affiliated with 6 sites of care and 5 medical groups

Dr. Xiong's primary practice is Woodland Nursing and Rehabilitation in Woodland, California. The medical group on file is UC Davis Medical Group. Dmand AI also links Dr. Xiong to 4 more medical groups, 3 group practices and clinics, 1 home health agency and 1 skilled nursing facility, each named with a free account.

See all 11 affiliations for Dr. Xiong

Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data

Dmand AI tracks the EHR system at Dr. Glen L. Xiong's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Xiong practices, 5 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Woodland Nursing and RehabilitationAvailable with a free account
+5 more sites and 4 medical groupsAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Glen L. Xiong is one of 6,803 psychiatrists in California

Psychiatry is Dr. Xiong's primary specialty in the NPI Registry, under taxonomy code 2084P0800X. Dr. Xiong is board certified in internal medicine by the American Board of Internal Medicine. Dmand AI has Dr. Xiong's licenses on file in 2 states: California and North Carolina.

Specialties and state licenses

  • Psychiatry, CaliforniaPrimaryLicense A93942 · 2006 to 2026 · taxonomy 2084P0800X
  • North Carolina license2001 to 2007

Clinical focus

Dmand AI lists alcohol use disorders, anxiety, bipolar disorder, depression, insomnia, intellectual and developmental disabilities, non-alzheimer's dementia (chronic) and schizophrenia among the conditions Dr. Xiong treats.

Psychiatrists near Dr. Xiong

Counts of psychiatrists with a Dmand AI profile, by place and practice. Each opens the list.

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. Glen L. Xiong billed Medicare for 1,185 services in 2024

CMS data shows 1,185 Medicare services from Dr. Xiong across 6 procedure codes in 2024, for 522 Medicare patients. Medicare paid $113,321 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 20241,185
Medicare patients522
Paid by Medicare$113,321
Procedure codes6

Dr. Xiong's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 8422024: 8521%
Tests and treatments
2023: 3062024: 3339%

Dr. Xiong compared with the California median for psychiatrists, 2024

  • Dr. Xiong
  • California median
Medicare services
1,185vs 11910.0 times
Medicare patients
522vs 4112.7 times
Part D claims
9,752vs 14467.7 times

Medians across 6,809 psychiatrists in California with Dmand AI profiles that report each measure.

Dr. Xiong's most billed Medicare procedure codes, 2024

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

See all procedures by Dr. Xiong

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Glen L. Xiong treated 522 Medicare patients in 2024, average age 75

CMS counts 522 Medicare patients who saw Dr. Xiong in 2024. The largest group is 65 to 74, with 189 patients. 75% of them have high blood pressure, and 72% have high cholesterol. 72% are also on Medicaid. Their average risk score is 2.43, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Dr. Xiong's median patient age at 75, with 53% women.

Medicare patients, 2024522
Average age75
Average risk score2.43
Also on Medicaid72%

Dr. Xiong's Medicare patients by age, 2024

Dr. Xiong's Medicare patients by sex, 2024

  • Women26350%
  • Men25950%

Chronic conditions among Dr. Xiong's Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol72%
  3. Mood disorders67%
  4. Alzheimer's and dementia61%
  5. Depression60%
  6. Anxiety51%
  7. Arthritis50%
  8. Diabetes49%

Share of Medicare patients with each condition. A patient can have several.

Dr. Xiong's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 75

Patient panel by sex, all payers

  • Women53%
  • Men47%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Glen L. Xiong wrote 10,449 Medicare Part D claims in 2024

In 2024, Dr. Xiong wrote 10,449 Medicare Part D claims for 457 patients. 85% of them were for generic drugs. CMS names the drug for 9,752 of them, across 151 drugs with 11 or more claims each, at $1,014,182 in total drug cost. In 2023, CMS named 6,837 claims across 109 drugs.

Part D claims, 202410,449
Drugs named by CMS151
Total drug cost$1M
Part D patients457

Dr. Xiong's Part D claims by kind of drug, 2024

  • Generic8,890 claims85%
  • Brand-name1,534 claims15%
  • Other25 claims0%

Dr. Xiong's most prescribed drugs by claims, 2024

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Drug classes CMS tracks in Dr. Xiong's Part D claims, 2024

  • Opioids0%40 of 10,449 claims
  • Antibiotics1%83 of 10,449 claims
  • Antipsychotics, patients 65 and over7%775 of 10,449 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 6,8372024: 9,75243%

Drugs named by CMS: 151 in 2024, 109 in 2023.

See all prescribing by Dr. Xiong

Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data

Dr. Glen L. Xiong scored 28 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 28 out of 100 for Dr. Xiong for performance year 2024, reported individually. Dr. Xiong accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Xiong as offering telehealth.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Dr. Xiong's MIPS scores, performance year 2024

  • 28of 100Final score
  • 0of 100Quality
  • 0of 100Improvement Activities
  • 92of 100Cost

Each score is out of 100. The final score weighs the categories CMS scored for this clinician.

Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026

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Dr. Glen L. Xiong has 66 publications on record

Dmand AI links 66 papers to Dr. Xiong, published from 2006 to 2024. 2017 was the busiest year, with 4. The most frequent topics are Antipsychotic Agents, Mental Disorders and Primary Health Care. Dr. Xiong has published most often in J Neuropsychiatry Clin Neurosci. Dr. Xiong's most frequent co-authors are Robert M. McCarron, DO, Peter Mackinlay Yellowlees, MD and Donald M. Hilty, MBA, MD.

Papers66
Years published2006 to 2024

Dr. Xiong's papers by year, 2014 to 2024

Topics Dr. Xiong writes about most

  • Antipsychotic Agents
  • Mental Disorders
  • Primary Health Care
  • Psychiatry
  • California
  • Telemedicine
  • Referral and Consultation
  • Catatonia

Dr. Xiong's most frequent co-authors

Recent publications by Dr. Xiong

See all 66 publications and co-authors

See who Dr. Xiong researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Xiong works with, so you can find a warm path to the right psychiatrists.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. Glen L. Xiong has worked on 2 clinical trials

Dmand AI links Dr. Xiong to 2 clinical trials. Conditions studied include Anxiety Disorders, Mental Disorders and Mood Disorders. University of California, Davis sponsors the most, 2.

Conditions in Dr. Xiong's trials

  • Anxiety Disorders
  • Mental Disorders
  • Mood Disorders

Recent clinical trials with Dr. Xiong

Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)

Dr. Glen L. Xiong received $338 in industry payments from 2023 to 2025

CMS Open Payments shows 4 general payments to Dr. Xiong from 3 drug and device companies from 2023 to 2025. Food and beverage make up the largest share, 70% of the total. Otsuka America Pharmaceutical, Inc. paid the most, $174.

General payments to Dr. Xiong by program year, 2023 to 2025

General payments to Dr. Xiong by kind, 2023 to 2025

$338in total
  • Food and beverage$23870%
  • Education$10030%

Companies that paid Dr. Xiong the most, 2023 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Xiong

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Glen L. Xiong graduated from UC Davis School of Medicine

Dr. Xiong graduated from UC Davis School of Medicine in 2001.

  1. Medical schoolUC Davis School of Medicine
  2. Board certified in internal medicineAmerican Board of Internal Medicine
  3. Board certified in psychiatryAmerican Board of Psychiatry and Neurology

Source: Dmand AI Professional Profile Data

Dr. Glen L. Xiong accepts plans from 9 insurance carriers

Dr. Xiong is in network with 9 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.

  • Aetna
  • Blue Cross Blue Shield of Michigan
  • United Healthcare
  • Blue Cross Blue Shield of Massachusetts
  • HCSC
  • Regence Health Plans
  • Blue Cross and Blue Shield of Kansas City
  • CMS Medicare
  • +1 more carriersWith a free account

Plan types Dr. Xiong accepts, by number of carriers

  1. Medicare7
  2. PPO6
  3. HMO3
  4. POS3
  5. EPO2
  6. Medicaid1

Source: Dmand AI Insurance Network Data

Sources for Dr. Glen L. Xiong's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Clinical trials and co-investigatorsDmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Glen L. Xiong

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Dr. Glen L. Xiong's NPI number?

Dr. Glen L. Xiong's NPI number is 1114945102. It was assigned on July 17, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Glen L. Xiong?

Dr. Glen L. Xiong is a psychiatrist in Woodland, California. The primary specialty in the NPI Registry is Psychiatry Physician (taxonomy code 2084P0800X).

Where does Dr. Glen L. Xiong practice?

Dr. Xiong practices at 678 3rd St, Woodland, CA 95695. Dr. Xiong's primary practice is Woodland Nursing and Rehabilitation in Woodland, California. Dmand AI also links Dr. Xiong to 4 medical groups, 3 group practices and clinics, 1 home health agency and 1 skilled nursing facility.

What is Dr. Glen L. Xiong's office phone number?

The practice phone on file for Dr. Xiong is (530) 662-9643.

What is Dr. Glen L. Xiong's medical license number?

Dr. Xiong holds California license A93942, one of the licenses on file in 2 states.

Which states has Dr. Glen L. Xiong been licensed in?

Dmand AI has state licenses on file for Dr. Xiong in California (2006 to 2026) and North Carolina (2001 to 2007).

What medical group is Dr. Glen L. Xiong part of?

Dr. Xiong is linked to UC Davis Medical Group. Dmand AI links Dr. Xiong to 4 more medical groups.

Does Dr. Glen L. Xiong accept Medicare?

Yes. CMS data shows Dr. Xiong billed Medicare for 1,185 services in 2024, and Dr. Xiong accepts Medicare assignment.

Does Dr. Glen L. Xiong offer telehealth?

Yes. The CMS Doctors and Clinicians file lists Dr. Xiong as offering telehealth services.

What is Dr. Glen L. Xiong's MIPS score?

Dr. Xiong's MIPS final score for performance year 2024 is 28 out of 100, reported individually.

Show 10 more questionsShow fewer questions

How many Medicare patients does Dr. Glen L. Xiong see?

CMS counts 522 Medicare patients who saw Dr. Xiong in 2024, with an average age of 75.

Is Dr. Glen L. Xiong board certified?

Yes. Dr. Xiong is board certified in internal medicine by the American Board of Internal Medicine.

What services does Dr. Glen L. Xiong bill to Medicare?

In 2024, Dr. Xiong's most billed Medicare services were nursing facility care (99308), psychiatric service (90792) and nursing facility care (99309).

Where did Dr. Glen L. Xiong go to medical school?

Dr. Xiong graduated from UC Davis School of Medicine in 2001.

What drugs does Dr. Glen L. Xiong prescribe most?

In 2024 Medicare Part D data, Dr. Xiong's most prescribed drugs by claims were Gabapentin, Olanzapine and Divalproex Sodium.

Has Dr. Glen L. Xiong received payments from drug or device companies?

CMS Open Payments shows $338 in general payments to Dr. Xiong from 3 companies from 2023 to 2025. The largest total came from Otsuka America Pharmaceutical, Inc.

How long has Dr. Glen L. Xiong been practicing?

Dr. Xiong graduated from medical school in 2001, 25 years ago.

Does Dr. Glen L. Xiong do research?

Dmand AI links 66 publications to Dr. Xiong, published from 2006 to 2024. Dr. Xiong has worked on 2 clinical trials.

Who does Dr. Glen L. Xiong publish with?

Dr. Xiong's most frequent co-authors are Robert M. McCarron, DO (12 shared papers), Peter Mackinlay Yellowlees, MD (8 shared papers) and Donald M. Hilty, MBA, MD (7 shared papers).

What insurance does Dr. Glen L. Xiong accept?

Dr. Xiong is in network with 9 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.

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