Dr. Andrew Ryan Lai, MD

  • San Francisco, CA
  • Hospitalist
NPI1861666281PAC ID8224174164
Medicare services, 2024
725
Medicare patients, 2024
186
Part D claims, 2024
168
Publications
12
MIPS score, 2024
100
Practice address
505 Parnassus Ave, Box 0296, San Francisco, CA 94143
Practice phone
Call (415) 353-2733
Professional email
Get professional email
Personal email
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Mobile number
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Social profiles

Primary practice

UCSF Helen Diller Medical Center at Parnassus Heights

Hospital · San Francisco, California

See all 5 affiliations

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Dr. Andrew Ryan Lai is a hospitalist in San Francisco, California

Dr. Lai practices at UCSF Helen Diller Medical Center at Parnassus Heights in San Francisco, California, part of University of California Health.

Dr. Lai's NPI, 1861666281, was assigned on April 16, 2008. Dr. Lai graduated from Warren Alpert Medical School of Brown University in 2006. Dr. Lai holds California license A103036.

NPI and contact details
Medicare PAC ID
8224174164
NPI enumeration date
April 16, 2008
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(415) 353-2733
Professional email
Get email
Personal email
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Mobile number
Get number
Sex
Male
Estimated age
46
Medical school graduation
2006

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

Dr. Andrew Ryan Lai practices at UCSF Helen Diller Medical Center at Parnassus Heights in San Francisco, California

Dr. Lai's primary practice is UCSF Helen Diller Medical Center at Parnassus Heights, at 505 Parnassus Ave, Box 0296, San Francisco, CA 94143 in San Francisco County. The practice phone is (415) 353-2733.

Source: Dmand AI Affiliation Data

Dr. Andrew Ryan Lai is affiliated with 2 sites of care and 3 medical groups

Dr. Lai's primary practice is UCSF Helen Diller Medical Center at Parnassus Heights in San Francisco, California, part of University of California Health. Dr. Lai is also affiliated with UCSF Health Stanyan Hospital. The medical group on file is UCSF Pediatrics. Dmand AI also links Dr. Lai to 2 more medical groups, each named with a free account.

See all 5 affiliations for Dr. Lai

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Andrew Ryan Lai's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Lai practices, 2 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
UCSF Helen Diller Medical Center at Parnassus HeightsAvailable with a free account
+1 more site and 2 medical groupsAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Andrew Ryan Lai is one of 3,186 hospitalists in California

Hospitalist is Dr. Lai's primary specialty in the NPI Registry, under taxonomy code 208M00000X. Dr. Lai is licensed in California.

Specialties and state licenses

  • Hospitalist, CaliforniaPrimaryLicense A103036 · taxonomy 208M00000X

Hospitalists near Dr. Lai

Counts of hospitalists 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. Andrew Ryan Lai billed Medicare for 725 services in 2024

CMS data shows 725 Medicare services from Dr. Lai across 7 procedure codes in 2024, for 186 Medicare patients. Medicare paid $55,801 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 2024725
Medicare patients186
Paid by Medicare$55,801
Procedure codes7

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

  • 2023
  • 2024
Office and hospital visits
2023: 3702024: 50837%
Other services
2023: 522024: 204292%
Surgery
2023: 292024: 1355%

Dr. Lai compared with the California median for hospitalists, 2024

  • Dr. Lai
  • California median
Medicare services
725vs 43069% above
Medicare patients
186vs 2017% below
Part D claims
11vs 6984% below

Medians across 2,991 hospitalists in California with Dmand AI profiles that report each measure.

Dr. Lai'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. Lai

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

Dr. Andrew Ryan Lai treated 186 Medicare patients in 2024, average age 74

CMS counts 186 Medicare patients who saw Dr. Lai in 2024. The largest group is 75 to 84, with 62 patients. 75% of them have high blood pressure, and 67% have high cholesterol. 56% are also on Medicaid. Their average risk score is 3.25, 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. Lai's median patient age at 69, with 40% women.

Medicare patients, 2024186
Average age74
Average risk score3.25
Also on Medicaid56%

Dr. Lai's Medicare patients by age, 2024

Dr. Lai's Medicare patients by sex, 2024

  • Women8948%
  • Men9752%

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

  1. High blood pressure75%
  2. High cholesterol67%
  3. Chronic kidney disease53%
  4. Arthritis45%
  5. Ischemic heart disease45%
  6. Diabetes44%
  7. Mood disorders42%
  8. Heart failure39%

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

Dr. Lai's patients across all payers

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

Patient panel by age, all payers

Median age 69

Patient panel by sex, all payers

  • Women40%
  • Men57%

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

Dr. Andrew Ryan Lai wrote 168 Medicare Part D claims in 2024

In 2024, Dr. Lai wrote 168 Medicare Part D claims for 51 patients. 77% of them were for generic drugs. CMS names the drug for 11 of them, across 1 drug with 11 or more claims each, at $100 in total drug cost. In 2022, CMS named 35 claims across 1 drug.

Part D claims, 2024168
Drugs named by CMS1
Total drug cost$100
Part D patients51

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

  • Generic129 claims77%
  • Brand-name and other39 claims23%

Dr. Lai's most prescribed drugs by claims, 2023

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. Lai's Part D claims, 2024

  • Antibiotics10%17 of 168 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, 2022 to 2023

  • 2022
  • 2023
Claims for drugs CMS names
2022: 352023: 1169%

Drugs named by CMS: 1 in 2023, 1 in 2022.

See all prescribing by Dr. Lai

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. Andrew Ryan Lai scored 100 out of 100 in Medicare's MIPS program for 2024

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

Accepts Medicare assignment
Yes

Dr. Lai's MIPS scores, performance year 2024

  • 100of 100Final score
  • 95of 100Quality
  • 40of 100Improvement Activities
  • 81of 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. Andrew Ryan Lai has 12 publications on record

Dmand AI links 12 papers to Dr. Lai, published from 2018 to 2023. 2022 was the busiest year, with 3. The most frequent topics are Endoscopy, Robotics and Robotic Surgical Procedures. Dr. Lai has published most often in J Endourol. Dr. Lai's most frequent co-authors are Simone Crivellaro, MD, Edward Ming-Luan Gong, MD and Bruce W. Lindgren, MD.

Papers12
Years published2018 to 2023

Dr. Lai's papers by year, 2018 to 2023

Topics Dr. Lai writes about most

  • Endoscopy
  • Robotics
  • Robotic Surgical Procedures
  • Surgeons
  • Ureterocele

Dr. Lai's most frequent co-authors

Recent publications by Dr. Lai

See all 12 publications and co-authors

See who Dr. Lai researches with

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

How network discovery works

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

Dr. Andrew Ryan Lai received $75 in industry payments from 2019 to 2022

CMS Open Payments shows 3 general payments to Dr. Lai from 3 drug and device companies from 2019 to 2022. Food and beverage make up the largest share, 100% of the total. Abbott Laboratories paid the most, $42.

General payments to Dr. Lai by program year, 2019 to 2022

Companies that paid Dr. Lai the most, 2019 to 2022

Share is of all general payments to this clinician.

See all payments to Dr. Lai

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

Dr. Andrew Ryan Lai graduated from Warren Alpert Medical School of Brown University

Dr. Lai graduated from Warren Alpert Medical School of Brown University in 2006.

  1. Medical schoolWarren Alpert Medical School of Brown University

Source: Dmand AI Professional Profile Data

Sources for Dr. Andrew Ryan Lai'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 phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy 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
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile 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. Andrew Ryan Lai

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. Andrew Ryan Lai's NPI number?

Dr. Andrew Ryan Lai's NPI number is 1861666281. It was assigned on April 16, 2008, and it is active in the NPI Registry.

What kind of doctor is Dr. Andrew Ryan Lai?

Dr. Andrew Ryan Lai is a hospitalist in San Francisco, California. The primary specialty in the NPI Registry is Hospitalist Physician (taxonomy code 208M00000X).

Where does Dr. Andrew Ryan Lai practice?

Dr. Lai practices at 505 Parnassus Ave, Box 0296, San Francisco, CA 94143. Dr. Lai's primary practice is UCSF Helen Diller Medical Center at Parnassus Heights in San Francisco, California, part of University of California Health. Dmand AI also links Dr. Lai to 2 medical groups.

What is Dr. Andrew Ryan Lai's office phone number?

The practice phone on file for Dr. Lai is (415) 353-2733.

What is Dr. Andrew Ryan Lai's medical license number?

Dr. Lai holds California license A103036.

Which hospitals is Dr. Andrew Ryan Lai affiliated with?

Dr. Lai practices at UCSF Helen Diller Medical Center at Parnassus Heights in San Francisco, California. Dr. Lai is also affiliated with UCSF Health Stanyan Hospital.

What medical group is Dr. Andrew Ryan Lai part of?

Dr. Lai is linked to UCSF Pediatrics. Dmand AI links Dr. Lai to 2 more medical groups.

Does Dr. Andrew Ryan Lai accept Medicare?

Yes. CMS data shows Dr. Lai billed Medicare for 725 services in 2024, and Dr. Lai accepts Medicare assignment.

What is Dr. Andrew Ryan Lai's MIPS score?

Dr. Lai's MIPS final score for performance year 2024 is 100 out of 100, reported as part of a group.

How many Medicare patients does Dr. Andrew Ryan Lai see?

CMS counts 186 Medicare patients who saw Dr. Lai in 2024, with an average age of 74.

Show 7 more questionsShow fewer questions

What services does Dr. Andrew Ryan Lai bill to Medicare?

In 2024, Dr. Lai's most billed Medicare services were hospital inpatient care (99233), medicare service (G0316) and hospital inpatient care (99232).

Where did Dr. Andrew Ryan Lai go to medical school?

Dr. Lai graduated from Warren Alpert Medical School of Brown University in 2006.

What drugs does Dr. Andrew Ryan Lai prescribe most?

In 2023 Medicare Part D data, Dr. Lai's most prescribed drugs by claims were Prednisone.

Has Dr. Andrew Ryan Lai received payments from drug or device companies?

CMS Open Payments shows $75 in general payments to Dr. Lai from 3 companies from 2019 to 2022. The largest total came from Abbott Laboratories.

How long has Dr. Andrew Ryan Lai been practicing?

Dr. Lai graduated from medical school in 2006, 20 years ago.

Does Dr. Andrew Ryan Lai do research?

Dmand AI links 12 publications to Dr. Lai, published from 2018 to 2023.

Who does Dr. Andrew Ryan Lai publish with?

Dr. Lai's most frequent co-authors are Simone Crivellaro, MD (4 shared papers), Edward Ming-Luan Gong, MD (3 shared papers) and Bruce W. Lindgren, MD (3 shared papers).

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