Ray J. Lin

  • Covina, CA
  • Physician assistant
NPI1649693540PAC ID1254564081
Medicare services, 2024
374
Medicare patients, 2024
154
Part D claims, 2024
1,514
MIPS score, 2024
95
Hospital affiliations
1
Practice address
210 W San Bernardino Road, Covina, CA 91723
Practice phone
Call (626) 814-2468
Professional email
Get professional email
Personal email
Get personal email
Mobile number
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Social profiles

Primary practice

Emanate Health Inter-Community Hospital

Hospital · Covina, California

See all 5 affiliations

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Ray J. Lin is a physician assistant in Covina, California

Ray Lin practices at Emanate Health Inter-Community Hospital in Covina, California, part of Emanate Health.

Ray Lin's NPI, 1649693540, was assigned on January 28, 2014. Ray Lin holds California license 51415.

NPI and contact details
Medicare PAC ID
1254564081
NPI enumeration date
January 28, 2014
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(626) 814-2468
Professional email
Get email
Personal email
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Mobile number
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Sex
Male
Estimated age
39
Medical school graduation
2013

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

Ray J. Lin practices at Emanate Health Inter-Community Hospital in Covina, California

Ray Lin's primary practice is Emanate Health Inter-Community Hospital, at 210 W San Bernardino Road, Covina, CA 91723 in Los Angeles County. The practice phone is (626) 814-2468.

Source: Dmand AI Affiliation Data

Ray J. Lin is affiliated with 3 sites of care and 2 medical groups

Ray Lin's primary practice is Emanate Health Inter-Community Hospital in Covina, California, part of Emanate Health. The medical group on file is Island Dermatology. Dmand AI also links Ray Lin to 1 more behavioral health center, 1 group practice or clinic and 1 medical group, each named with a free account.

See all 5 affiliations for Ray Lin

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

Dmand AI tracks the EHR system at Ray J. Lin's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Ray Lin practices, 3 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Emanate Health Inter-Community HospitalAvailable with a free account
+2 more sites and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

For health IT teams

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Dmand AI maps EHR vendors, IT decision makers and buying committees across Emanate Health and 6.2K+ hospitals, with verified contacts in the same login.

Ray J. Lin is one of 2,381 physician assistants in California

Medical is Ray Lin's primary specialty in the NPI Registry, under taxonomy code 363AM0700X. Ray Lin is board certified in certified physician assistant by the National Commission on Certification of Physician Assistants (NCCPA). Dmand AI has Ray Lin's licenses on file in 2 states: California and Texas.

Specialties and state licenses

  • Medical physician assistant, CaliforniaPrimaryLicense 51415 · taxonomy 363AM0700X
  • Texas licenseLicense PA08998

Clinical focus

Dmand AI lists acne, acute skin infection, benign or precancerous skin growths, contact dermatitis, facial skin infection, itchy rashes, minor injury to a limb and psoriasis among the conditions Ray Lin treats.

Physician assistants near Ray Lin

Counts of physician assistants 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

Ray J. Lin billed Medicare for 374 services in 2024

CMS data shows 374 Medicare services from Ray Lin across 11 procedure codes in 2024, for 154 Medicare patients. Medicare paid $32,145 for them. Every service was in an office.

Medicare services, 2024374
Medicare patients154
Paid by Medicare$32,145
Procedure codes11

Ray Lin's Medicare services by type, 2024

  1. Surgery189
  2. Office and hospital visits185

Ray Lin compared with the California median for physician assistants, 2024

  • Ray Lin
  • California median
Medicare services
374vs 27835% above
Medicare patients
154vs 11633% above
Part D claims
1,401vs 4403.2 times

Medians across 1,473 physician assistants in California with Dmand AI profiles that report each measure.

Ray Lin'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 Ray Lin

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

Ray J. Lin treated 154 Medicare patients in 2024, average age 71

CMS counts 154 Medicare patients who saw Ray Lin in 2024. The largest group is 65 to 74, with 72 patients. 75% of them have high cholesterol, and 73% have high blood pressure. 57% are also on Medicaid. Their average risk score is 1.37, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Ray Lin's median patient age at 59, with 58% women.

Medicare patients, 2024154
Average age71
Average risk score1.37
Also on Medicaid57%

Ray Lin's Medicare patients by age, 2024

Ray Lin's Medicare patients by sex, 2024

  • Women6844%
  • Men8656%

Chronic conditions among Ray Lin's Medicare patients, 2024

  1. High cholesterol75%
  2. High blood pressure73%
  3. Diabetes45%
  4. Arthritis33%
  5. Chronic kidney disease25%
  6. Ischemic heart disease24%
  7. COPD17%
  8. Anxiety16%

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

Ray Lin's patients across all payers

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

Patient panel by age, all payers

Median age 59

Patient panel by sex, all payers

  • Women58%
  • Men42%

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

Ray J. Lin wrote 1,514 Medicare Part D claims in 2024

In 2024, Ray Lin wrote 1,514 Medicare Part D claims for 520 patients. 95% of them were for generic drugs. CMS names the drug for 1,401 of them, across 19 drugs with 11 or more claims each, at $227,840 in total drug cost.

Part D claims, 20241,514
Drugs named by CMS19
Total drug cost$227,840
Part D patients520

Ray Lin's Part D claims by kind of drug, 2024

  • Generic1,435 claims95%
  • Brand-name79 claims5%

Ray Lin'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 Ray Lin's Part D claims, 2024

  • Antibiotics6%88 of 1,514 claims

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

See all prescribing by Ray Lin

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

Ray J. Lin scored 95 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 95 out of 100 for Ray Lin for performance year 2024, reported as part of a group. Ray Lin accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Ray Lin's MIPS scores, performance year 2024

  • 95of 100Final score
  • 92of 100Promoting Interoperability
  • 40of 100Improvement Activities

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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Ray J. Lin received $6,229 in industry payments from 2024 to 2025

CMS Open Payments shows 208 general payments to Ray Lin from 18 drug and device companies from 2024 to 2025. Food and beverage make up the largest share, 98% of the total. Dermavant Sciences, Inc. paid the most, $1,022.

General payments to Ray Lin by program year, 2024 to 2025

General payments to Ray Lin by kind, 2024 to 2025

$6.2Kin total
  • Food and beverage$6,12998%
  • Education$992%

Companies that paid Ray Lin the most, 2024 to 2025

Share is of all general payments to this clinician.

See all payments to Ray Lin

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

Ray J. Lin is board certified in certified physician assistant

  1. Board certified in certified physician assistantNational Commission on Certification of Physician Assistants (NCCPA)

Source: Dmand AI Professional Profile Data

Sources for Ray J. Lin'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)
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 Ray J. Lin

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

What is Ray J. Lin's NPI number?

Ray J. Lin's NPI number is 1649693540. It was assigned on January 28, 2014, and it is active in the NPI Registry.

What does Ray J. Lin specialize in?

Ray J. Lin is a physician assistant in Covina, California. The primary specialty in the NPI Registry is Medical Physician Assistant (taxonomy code 363AM0700X).

Where does Ray J. Lin practice?

Ray Lin practices at 210 W San Bernardino Road, Covina, CA 91723. Ray Lin's primary practice is Emanate Health Inter-Community Hospital in Covina, California, part of Emanate Health. Dmand AI also links Ray Lin to 1 behavioral health center, 1 group practice or clinic and 1 medical group.

What is Ray J. Lin's office phone number?

The practice phone on file for Ray Lin is (626) 814-2468.

What is Ray J. Lin's medical license number?

Ray Lin holds California license 51415, one of the licenses on file in 2 states.

Which states has Ray J. Lin been licensed in?

Dmand AI has state licenses on file for Ray Lin in California and Texas.

Which hospitals is Ray J. Lin affiliated with?

Ray Lin practices at Emanate Health Inter-Community Hospital in Covina, California.

What medical group is Ray J. Lin part of?

Ray Lin is linked to Island Dermatology. Dmand AI links Ray Lin to 1 more medical group.

Does Ray J. Lin accept Medicare?

Yes. CMS data shows Ray Lin billed Medicare for 374 services in 2024, and Ray Lin accepts Medicare assignment.

What is Ray J. Lin's MIPS score?

Ray Lin's MIPS final score for performance year 2024 is 95 out of 100, reported as part of a group.

Show 6 more questionsShow fewer questions

How many Medicare patients does Ray J. Lin see?

CMS counts 154 Medicare patients who saw Ray Lin in 2024, with an average age of 71.

Is Ray J. Lin board certified?

Yes. Ray Lin is board certified in certified physician assistant by the National Commission on Certification of Physician Assistants (NCCPA).

What services does Ray J. Lin bill to Medicare?

In 2024, Ray Lin's most billed Medicare services were office visit, established patient (99214), office visit, established patient (99213) and surgery: skin and soft tissue (17111).

What drugs does Ray J. Lin prescribe most?

In 2024 Medicare Part D data, Ray Lin's most prescribed drugs by claims were Ketoconazole, Triamcinolone Acetonide and Clobetasol Propionate.

Has Ray J. Lin received payments from drug or device companies?

CMS Open Payments shows $6,229 in general payments to Ray Lin from 18 companies from 2024 to 2025. The largest total came from Dermavant Sciences, Inc.

How long has Ray J. Lin been practicing?

Ray Lin graduated from medical school in 2013, 13 years ago.

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