Dr. Michael R. Lenihan, MD

  • Chula Vista, CA
  • Orthopedic surgeon
NPI1699711846PAC ID8325085095
Medicare services, 2024
13
Medicare patients, 2024
35
Part D claims, 2019
13
Publications
1
MIPS score, 2024
100
Practice address
955 Lane Avenue, Suite 100, Chula Vista, CA 91914
Practice phone
Call (619) 754-2260
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Sharp Otay Lakes Surgery Center

Surgery Center - Medicare-Certified · Chula Vista, California

See all 5 affiliations

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Dr. Michael R. Lenihan is an orthopedic surgeon in Chula Vista, California

Dr. Lenihan practices at Sharp Otay Lakes Surgery Center in Chula Vista, California.

Dr. Lenihan's NPI, 1699711846, was assigned on June 22, 2006. Dr. Lenihan graduated from Keck School of Medicine of USC in 1986. Dr. Lenihan holds California license G61864.

NPI and contact details
Medicare PAC ID
8325085095
NPI enumeration date
June 22, 2006
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(619) 754-2260
Professional email
Get email
Personal email
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Mobile number
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Sex
Male
Estimated age
66
Medical school graduation
1986

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

Dr. Michael R. Lenihan practices at Sharp Otay Lakes Surgery Center in Chula Vista, California

Dr. Lenihan's primary practice is Sharp Otay Lakes Surgery Center, at 955 Lane Avenue, Suite 100, Chula Vista, CA 91914. The practice phone is (619) 754-2260.

  • Sharp Otay Lakes Surgery Center
    955 Lane Avenue, Suite 100, Chula Vista, CA 91914Phone(619) 754-2260

Source: Dmand AI Affiliation Data

Dr. Michael R. Lenihan is affiliated with 3 sites of care and 2 medical groups

Dr. Lenihan's primary practice is Sharp Otay Lakes Surgery Center in Chula Vista, California. The medical group on file is Emergency and Acute Care Medical Corporation. Dmand AI also links Dr. Lenihan to 2 more group practices and clinics and 1 medical group, each named with a free account.

See all 5 affiliations for Dr. Lenihan

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

Dmand AI tracks the EHR system at Dr. Michael R. Lenihan's practice

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

EHR by site
SiteEHR vendor and product
Sharp Otay Lakes Surgery CenterAvailable with a free account
+2 more sites and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Michael R. Lenihan is one of 2,056 orthopedic surgeons in California

Orthopaedic surgery is Dr. Lenihan's primary specialty in the NPI Registry, under taxonomy code 207X00000X. Dr. Lenihan is board certified in orthopaedic surgery by the American Board of Orthopaedic Surgery. Dr. Lenihan is licensed in California.

Specialties and state licenses

  • Orthopaedic surgery, CaliforniaPrimaryLicense G61864 · 1987 to 2026 · taxonomy 207X00000X

Clinical focus

Dmand AI lists arthritis, enthesopathy in arms, joint arthropathy, joint pain, knee arthroscopy, muscle pain, fibromyalgia, and limb pain, rotator cuff injury and traumatic arthropathy among the conditions Dr. Lenihan treats.

Orthopedic surgeons near Dr. Lenihan

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

2,056orthopedic surgeons in California
7orthopedic surgeons in Chula Vista

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

Dr. Michael R. Lenihan billed Medicare for 13 services in 2024

CMS data shows 13 Medicare services from Dr. Lenihan across 1 procedure code in 2024, all of them office visits, for 35 Medicare patients. Medicare paid $930 for them. Every service was in an office.

Medicare services, 202413
Medicare patients35
Paid by Medicare$930
Procedure codes1

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

  • 2023
  • 2024
Office and hospital visits
2023: 612024: 1379%

Dr. Lenihan compared with the California median for orthopedic surgeons, 2024

  • Dr. Lenihan
  • California median
Medicare services
13vs 68398% below
Medicare patients
35vs 21584% below
Part D claims
13vs 7081% below

Medians across 1,844 orthopedic surgeons in California with Dmand AI profiles that report each measure.

Dr. 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 Dr. Lenihan

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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Lenihan and other orthopedic surgeons in California.

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

Dr. Michael R. Lenihan treated 35 Medicare patients in 2024, average age 73

CMS counts 35 Medicare patients who saw Dr. Lenihan in 2024. The largest group is 65 to 74, with 18 patients. 75% of them have arthritis, and 69% have high blood pressure. Their average risk score is 0.88, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Lenihan's median patient age at 58, with 44% women.

Medicare patients, 202435
Average age73
Average risk score0.88

Dr. Lenihan's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Dr. Lenihan's Medicare patients by sex, 2024

  • Women1543%
  • Men2057%

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

  1. Arthritis75%
  2. High blood pressure69%
  3. High cholesterol66%

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

Dr. 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 58

Patient panel by sex, all payers

  • Women44%
  • Men55%

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

Dr. Michael R. Lenihan wrote 13 Medicare Part D claims in 2019

In 2019, Dr. Lenihan wrote 13 Medicare Part D claims. They cover 1 drug, with $110 in total drug cost. In 2018, CMS named 24 claims across 1 drug.

Part D claims, 201913
Drugs named by CMS1
Total drug cost$110

Dr. Lenihan's most prescribed drugs by claims, 2019

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

Part D claims for drugs CMS names, 2018 to 2019

  • 2018
  • 2019
Claims for drugs CMS names
2018: 242019: 1346%

Drugs named by CMS: 1 in 2019, 1 in 2018.

See all prescribing by Dr. Lenihan

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

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

Accepts Medicare assignment
Yes

Dr. 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.

Upper limb (arm) arthroscopy (minimally invasive joint repair): 1 to 10 procedures (CMS shows small counts as a range)

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

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Dr. Michael R. Lenihan has 1 publication on record

Dmand AI links 1 paper to Dr. Lenihan in 2018. Dr. Lenihan's most frequent co-author is Sabrina S. Hong, MD.

Papers1

Dr. Lenihan's most frequent co-authors

Recent publications by Dr. Lenihan

See all 1 publications and co-authors

See who Dr. Lenihan researches with

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

How network discovery works

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

Dr. Michael R. Lenihan received $9,162 in industry payments from 2016 to 2025

CMS Open Payments shows 107 general payments to Dr. Lenihan from 32 drug and device companies from 2016 to 2025. Speaker and faculty fees make up the largest share, 51% of the total. Sanofi and Genzyme US Companies paid the most, $4,795.

General payments to Dr. Lenihan by program year, 2016 to 2025

General payments to Dr. Lenihan by kind, 2016 to 2025

$9.2Kin total
  • Speaker and faculty fees$4,68051%
  • Food and beverage$4,43948%
  • Education$430%

Companies that paid Dr. Lenihan the most, 2016 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Lenihan

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

Dr. Michael R. Lenihan graduated from Keck School of Medicine of USC

Dr. Lenihan graduated from Keck School of Medicine of USC in 1986.

  1. Medical schoolKeck School of Medicine of USC
  2. Board certified in orthopaedic surgeryAmerican Board of Orthopaedic Surgery

Source: Dmand AI Professional Profile Data

Dr. Michael R. Lenihan accepts plans from 15 insurance carriers

Dr. Lenihan is in network with 15 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 10. Check the plan with the practice before a visit.

Plan types Dr. Lenihan accepts, by number of carriers

  1. PPO10
  2. Medicare9
  3. HMO8
  4. EPO4
  5. POS3

Source: Dmand AI Insurance Network Data

Sources for Dr. Michael R. Lenihan'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)
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)Doctors and Clinicians Utilization Data (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
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. Michael R. Lenihan

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. Michael R. Lenihan's NPI number?

Dr. Michael R. Lenihan's NPI number is 1699711846. It was assigned on June 22, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Michael R. Lenihan?

Dr. Michael R. Lenihan is an orthopedic surgeon in Chula Vista, California. The primary specialty in the NPI Registry is Orthopaedic Surgery Physician (taxonomy code 207X00000X).

Where does Dr. Michael R. Lenihan practice?

Dr. Lenihan practices at 955 Lane Avenue, Suite 100, Chula Vista, CA 91914. Dr. Lenihan's primary practice is Sharp Otay Lakes Surgery Center in Chula Vista, California. Dmand AI also links Dr. Lenihan to 2 group practices and clinics and 1 medical group.

What is Dr. Michael R. Lenihan's office phone number?

The practice phone on file for Dr. Lenihan is (619) 754-2260.

What is Dr. Michael R. Lenihan's medical license number?

Dr. Lenihan holds California license G61864.

What medical group is Dr. Michael R. Lenihan part of?

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

Does Dr. Michael R. Lenihan accept Medicare?

Yes. CMS data shows Dr. Lenihan billed Medicare for 13 services in 2024, and Dr. Lenihan accepts Medicare assignment.

What is Dr. Michael R. Lenihan's MIPS score?

Dr. 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 Dr. Michael R. Lenihan see?

CMS counts 35 Medicare patients who saw Dr. Lenihan in 2024, with an average age of 73.

Is Dr. Michael R. Lenihan board certified?

Yes. Dr. Lenihan is board certified in orthopaedic surgery by the American Board of Orthopaedic Surgery.

Show 8 more questionsShow fewer questions

What services does Dr. Michael R. Lenihan bill to Medicare?

In 2024, Dr. Lenihan's most billed Medicare services were office visit, established patient (99213).

Where did Dr. Michael R. Lenihan go to medical school?

Dr. Lenihan graduated from Keck School of Medicine of USC in 1986.

What drugs does Dr. Michael R. Lenihan prescribe most?

In 2019 Medicare Part D data, Dr. Lenihan's most prescribed drugs by claims were Hydrocodone-Acetaminophen.

Has Dr. Michael R. Lenihan received payments from drug or device companies?

CMS Open Payments shows $9,162 in general payments to Dr. Lenihan from 32 companies from 2016 to 2025. The largest total came from Sanofi and Genzyme US Companies.

How long has Dr. Michael R. Lenihan been practicing?

Dr. Lenihan graduated from medical school in 1986, 40 years ago.

Does Dr. Michael R. Lenihan do research?

Dmand AI links 1 publication to Dr. Lenihan.

Who does Dr. Michael R. Lenihan publish with?

Dr. Lenihan's most frequent co-authors are Sabrina S. Hong, MD (1 shared paper).

What insurance does Dr. Michael R. Lenihan accept?

Dr. Lenihan is in network with 15 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 10. Check the plan with the practice before a visit.

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