Mark S. Lembach, PA-C

  • Boulder, CO
  • Physician assistant
NPI1225326978PAC ID7517138977
Medicare patients, 2024
27
Part D claims, 2024
142
Hospital affiliations
2
Industry payments
$65,000
Medical group
1
Practice address
4747 Arapahoe Avenue, Boulder, CO 80304
Practice phone
Call (303) 440-2273
Professional email
Get professional email
Personal email
Get personal email
Mobile number
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Social profiles

Primary practice

Foothills Hospital

Hospital · Boulder, Colorado

See all 4 affiliations

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Mark S. Lembach is a physician assistant in Boulder, Colorado

Mark Lembach practices at Foothills Hospital in Boulder, Colorado, part of Boulder Community Health.

Mark Lembach's NPI, 1225326978, was assigned on July 15, 2011. Mark Lembach holds Florida license PA9120631.

NPI and contact details
Medicare PAC ID
7517138977
NPI enumeration date
July 15, 2011
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(303) 440-2273
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 Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Mark S. Lembach practices at Foothills Hospital in Boulder, Colorado

Mark Lembach's primary practice is Foothills Hospital, at 4747 Arapahoe Avenue, Boulder, CO 80304 in Boulder County. The practice phone is (303) 440-2273.

  • Foothills Hospital
    4747 Arapahoe Avenue, Boulder, CO 80304 · Boulder CountyPhone(303) 440-2273

Source: Dmand AI Affiliation Data

Mark S. Lembach is affiliated with 3 sites of care and 1 medical group

Mark Lembach's primary practice is Foothills Hospital in Boulder, Colorado, part of Boulder Community Health. Mark Lembach is also affiliated with Lee Memorial Hospital. The medical group on file is Lee Physician Group. Dmand AI also links Mark Lembach to 1 more group practice or clinic, named with a free account.

See all 4 affiliations for Mark Lembach

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

Dmand AI tracks the EHR system at Mark S. Lembach's practice

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

EHR by site
SiteEHR vendor and product
Foothills HospitalAvailable with a free account
+2 more affiliated sitesAvailable with a free account

Source: Dmand AI Technology Install Data

For health IT teams

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Mark S. Lembach is one of 3,013 physician assistants in Colorado

Physician assistant is Mark Lembach's primary specialty in the NPI Registry, under taxonomy code 363A00000X. Dmand AI has Mark Lembach's licenses on file in 3 states: Florida, Colorado and Wisconsin.

Specialties and state licenses

  • Physician assistant, FloridaPrimaryLicense PA9120631 · taxonomy 363A00000X
  • Colorado licenseLicense PA.0005518
  • Wisconsin licenseLicense 2794

Physician assistants near Mark Lembach

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

Mark S. Lembach treated 27 Medicare patients in 2024, average age 75

CMS counts 27 Medicare patients who saw Mark Lembach in 2024. The largest group is 75 to 84, with 13 patients. 75% of them have high cholesterol, and 75% have ischemic heart disease. Their average risk score is 1.06, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Mark Lembach's median patient age at 74, with 36% women.

Medicare patients, 202427
Average age75
Average risk score1.06

Mark Lembach's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Mark Lembach's Medicare patients by sex, 2024

  • Women1141%
  • Men1659%

Chronic conditions among Mark Lembach's Medicare patients, 2024

  1. High cholesterol75%
  2. Ischemic heart disease75%
  3. High blood pressure74%
  4. Atrial fibrillation59%
  5. Arthritis52%
  6. Heart failure44%

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

Mark Lembach's patients across all payers

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

Patient panel by age, all payers

Median age 74

Patient panel by sex, all payers

  • Women36%
  • Men64%

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

Mark S. Lembach wrote 142 Medicare Part D claims in 2024

In 2024, Mark Lembach wrote 142 Medicare Part D claims for 49 patients. 94% of them were for generic drugs.

Part D claims, 2024142
Part D patients49

Mark Lembach's Part D claims by kind of drug, 2024

  • Generic133 claims94%
  • Brand-name and other9 claims6%

Drug classes CMS tracks in Mark Lembach's Part D claims, 2024

  • Opioids18%26 of 142 claims

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

Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data

How Mark S. Lembach takes part in Medicare

Mark Lembach accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Source: Doctors and Clinicians National Downloadable File (CMS)

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Mark S. Lembach received $65,000 in industry payments in 2025

CMS Open Payments shows 1 general payment to Mark Lembach from 1 drug or device company in 2025. Grants make up the largest share, 100% of the total. Medtronic, Inc. paid the most, $65,000.

Companies that paid Mark Lembach the most, 2025 to 2025

Share is of all general payments to this clinician.

See all payments to Mark Lembach

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

Sources for Mark S. Lembach'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 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 (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
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 Mark S. Lembach

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

What is Mark S. Lembach's NPI number?

Mark S. Lembach's NPI number is 1225326978. It was assigned on July 15, 2011, and it is active in the NPI Registry.

What does Mark S. Lembach specialize in?

Mark S. Lembach is a physician assistant in Boulder, Colorado. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).

Where does Mark S. Lembach practice?

Mark Lembach practices at 4747 Arapahoe Avenue, Boulder, CO 80304. Mark Lembach's primary practice is Foothills Hospital in Boulder, Colorado, part of Boulder Community Health. Dmand AI also links Mark Lembach to 1 group practice or clinic.

What is Mark S. Lembach's office phone number?

The practice phone on file for Mark Lembach is (303) 440-2273.

What is Mark S. Lembach's medical license number?

Mark Lembach holds Florida license PA9120631, one of the licenses on file in 3 states.

Which states has Mark S. Lembach been licensed in?

Dmand AI has state licenses on file for Mark Lembach in Florida, Colorado and Wisconsin.

Which hospitals is Mark S. Lembach affiliated with?

Mark Lembach practices at Foothills Hospital in Boulder, Colorado. Mark Lembach is also affiliated with Lee Memorial Hospital.

What medical group is Mark S. Lembach part of?

Mark Lembach is linked to Lee Physician Group.

Does Mark S. Lembach accept Medicare?

Yes. CMS lists Mark Lembach as accepting Medicare assignment.

How many Medicare patients does Mark S. Lembach see?

CMS counts 27 Medicare patients who saw Mark Lembach in 2024, with an average age of 75.

Has Mark S. Lembach received payments from drug or device companies?

CMS Open Payments shows $65,000 in general payments to Mark Lembach from 1 company from 2025 to 2025. The largest total came from Medtronic, Inc.

How long has Mark S. Lembach been practicing?

Mark Lembach graduated from medical school in 2011, 15 years ago.

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