Michael Ryan Lenihan Jr., PA-C

  • San Diego, CA
  • Surgical physician assistant
NPI1174921183PAC ID6608196449
Medicare services, 2024
4,066
Medicare patients, 2024
232
MIPS score, 2024
100
Hospital affiliations
1
Industry payments
$1,992
Practice address
4445 Eastgate Mall, San Diego, CA 92121
Practice phone
Call (858) 412-6080
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Synergy Orthopedic Specialists, Inc.

San Diego, California

See all 6 affiliations

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Michael Ryan Lenihan Jr. is a surgical physician assistant in San Diego, California

Michael Lenihan practices at Synergy Orthopedic Specialists, Inc. in San Diego, California.

Michael Lenihan's NPI, 1174921183, was assigned on December 8, 2014. Michael Lenihan holds California license 52066.

NPI and contact details
Medicare PAC ID
6608196449
NPI enumeration date
December 8, 2014
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(858) 412-6080
Professional email
Get email
Personal email
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Mobile number
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Sex
Male
Estimated age
41
Medical school graduation
2011

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

Michael Ryan Lenihan Jr. practices at Synergy Orthopedic Specialists, Inc. in San Diego, California

Michael Lenihan's primary practice is Synergy Orthopedic Specialists, Inc., at 4445 Eastgate Mall, San Diego, CA 92121 in San Diego County. The practice phone is (858) 412-6080.

  • Synergy Orthopedic Specialists, Inc.
    4445 Eastgate Mall, San Diego, CA 92121 · San Diego CountyPhone(858) 412-6080

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

Michael Ryan Lenihan Jr. is affiliated with 4 sites of care and 2 medical groups

Michael Lenihan's primary practice is Synergy Orthopedic Specialists, Inc. in San Diego, California. Michael Lenihan is also affiliated with Sharp Chula Vista Medical Center. The medical group on file is Emergency and Acute Care Medical Corporation. Dmand AI also links Michael Lenihan to 2 more group practices and clinics and 1 medical group, each named with a free account.

See all 6 affiliations for Michael Lenihan

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

Dmand AI tracks the EHR system at Michael Ryan Lenihan Jr.'s practice

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

EHR by site
SiteEHR vendor and product
Synergy Orthopedic Specialists, Inc.Available with a free account
+3 more sites and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

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Michael Ryan Lenihan Jr. is one of 883 surgical physician assistants in California

Surgical is Michael Lenihan's primary specialty in the NPI Registry, under taxonomy code 363AS0400X. Michael Lenihan is board certified in certified physician assistant by the National Commission on Certification of Physician Assistants (NCCPA). Michael Lenihan is licensed in California.

Specialties and state licenses

  • Surgical physician assistant, CaliforniaPrimaryLicense 52066 · taxonomy 363AS0400X

Clinical focus

Dmand AI lists arthritis, knee injury and traumatic arthropathy among the conditions Michael Lenihan treats.

Surgical physician assistants near Michael Lenihan

Counts of surgical 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

Michael Ryan Lenihan Jr. billed Medicare for 4,066 services in 2024

CMS data shows 4,066 Medicare services from Michael Lenihan across 13 procedure codes in 2024, for 232 Medicare patients. Medicare paid $53,989 for them. Every service was in an office.

Medicare services, 20244,066
Medicare patients232
Paid by Medicare$53,989
Procedure codes13

Michael Lenihan's Medicare services by type, 2024

  1. Drugs given in the office3,545
  2. Surgery416
  3. Imaging77
  4. Office and hospital visits28

Michael Lenihan compared with the California median for surgical physician assistants, 2024

  • Michael Lenihan
  • California median
Medicare services
4,066vs 22018.5 times
Medicare patients
232vs 902.6 times

Medians across 656 surgical physician assistants in California with Dmand AI profiles that report each measure.

Michael Lenihan'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 Michael Lenihan

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

Michael Ryan Lenihan Jr. treated 232 Medicare patients in 2024, average age 74

CMS counts 232 Medicare patients who saw Michael Lenihan in 2024. The largest group is 65 to 74, with 107 patients. 75% of them have arthritis, and 69% have high cholesterol. 25% are also on Medicaid. Their average risk score is 1.13, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Michael Lenihan's median patient age at 68, with 62% women.

Medicare patients, 2024232
Average age74
Average risk score1.13
Also on Medicaid25%

Michael Lenihan's Medicare patients by age, 2024

Michael Lenihan's Medicare patients by sex, 2024

  • Women14563%
  • Men8738%

Chronic conditions among Michael Lenihan's Medicare patients, 2024

  1. Arthritis75%
  2. High cholesterol69%
  3. High blood pressure67%
  4. Diabetes34%
  5. Chronic kidney disease25%
  6. Anxiety21%
  7. Ischemic heart disease19%
  8. Mood disorders19%

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

Michael Lenihan's patients across all payers

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

Patient panel by age, all payers

Median age 68

Patient panel by sex, all payers

  • Women62%
  • Men38%

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

Michael Ryan Lenihan Jr. 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 Michael Lenihan for performance year 2024, reported as part of a group. Michael Lenihan accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Michael Lenihan's MIPS scores, performance year 2024

  • 100of 100Final score
  • 99of 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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Michael Ryan Lenihan Jr. received $1,992 in industry payments from 2024 to 2025

CMS Open Payments shows 19 general payments to Michael Lenihan from 7 drug and device companies from 2024 to 2025. Travel and lodging make up the largest share, 75% of the total. Medtronic, Inc. paid the most, $1,648.

General payments to Michael Lenihan by program year, 2024 to 2025

General payments to Michael Lenihan by kind, 2024 to 2025

$2Kin total
  • Travel and lodging$1,48875%
  • Food and beverage$50425%

Companies that paid Michael Lenihan the most, 2024 to 2025

Share is of all general payments to this clinician.

See all payments to Michael Lenihan

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

Michael Ryan Lenihan Jr. is board certified in certified physician assistant

Michael Lenihan is a member of AAPA.

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

Source: Dmand AI Professional Profile Data

Sources for Michael Ryan Lenihan Jr.'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)
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 Michael Ryan Lenihan Jr.

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

What is Michael Ryan Lenihan Jr.'s NPI number?

Michael Ryan Lenihan Jr.'s NPI number is 1174921183. It was assigned on December 8, 2014, and it is active in the NPI Registry.

What does Michael Ryan Lenihan Jr. specialize in?

Michael Ryan Lenihan Jr. is a surgical physician assistant in San Diego, California. The primary specialty in the NPI Registry is Surgical Physician Assistant (taxonomy code 363AS0400X).

Where does Michael Ryan Lenihan Jr. practice?

Michael Lenihan practices at 4445 Eastgate Mall, San Diego, CA 92121. Michael Lenihan's primary practice is Synergy Orthopedic Specialists, Inc. in San Diego, California. Dmand AI also links Michael Lenihan to 2 group practices and clinics and 1 medical group.

What is Michael Ryan Lenihan Jr.'s office phone number?

The practice phone on file for Michael Lenihan is (858) 412-6080.

What is Michael Ryan Lenihan Jr.'s medical license number?

Michael Lenihan holds California license 52066.

Which hospitals is Michael Ryan Lenihan Jr. affiliated with?

Michael Lenihan is affiliated with Sharp Chula Vista Medical Center.

What medical group is Michael Ryan Lenihan Jr. part of?

Michael Lenihan is linked to Emergency and Acute Care Medical Corporation. Dmand AI links Michael Lenihan to 1 more medical group.

Does Michael Ryan Lenihan Jr. accept Medicare?

Yes. CMS data shows Michael Lenihan billed Medicare for 4,066 services in 2024, and Michael Lenihan accepts Medicare assignment.

What is Michael Ryan Lenihan Jr.'s MIPS score?

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

How many Medicare patients does Michael Ryan Lenihan Jr. see?

CMS counts 232 Medicare patients who saw Michael Lenihan in 2024, with an average age of 74.

Show 4 more questionsShow fewer questions

Is Michael Ryan Lenihan Jr. board certified?

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

What services does Michael Ryan Lenihan Jr. bill to Medicare?

In 2024, Michael Lenihan's most billed Medicare services were injected or infused drug (J0665), injected or infused drug (J0702) and injected or infused drug (J7322).

Has Michael Ryan Lenihan Jr. received payments from drug or device companies?

CMS Open Payments shows $1,992 in general payments to Michael Lenihan from 7 companies from 2024 to 2025. The largest total came from Medtronic, Inc.

How long has Michael Ryan Lenihan Jr. been practicing?

Michael Lenihan graduated from medical school in 2011, 15 years ago.

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