NPPES file of Aug 9, 2026

Mark Dean Christensen, MD

Family Medicine Physician · Castle Pines, CO

Mark Dean Christensen, MD is a family medicine physician with a practice address in Castle Pines, Colorado, and NPI 1588944516, issued on Aug 22, 2011. Check the license (Colorado 56009, as entered in NPPES) on the Colorado Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1588944516
Name
Mark Dean Christensen
Credential
MD
Primary taxonomy
Family Medicine Physician 207Q00000X
License numbers
56009 CO
DR.0056009 CO
A115152 CA
Self-reported in NPPES; status is on the state search
Practice location
7280 Lagae RD Ste J, Castle Pines, CO 80108
Phone
(303) 814-0505
Enumerated
Aug 22, 2011
Record last updated
Aug 23, 2023
Fax
(303) 814-6491
Medicare enrollment
Enrolled (PECOS I20160111001249); accepts Medicare assignment
Medical or professional school
Loma Linda University School Of Medicine, 2009
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
Download card Updates feed

Also registered at 7280 Lagae RD Ste J

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Heidi Christensen, M.D.Sports Medicine (Family Medicine) Physician1013146729
  2. Caroline Miller, APRNFamily Nurse Practitioner1154876076
  3. Andrea Moon, P.A.Physician Assistant1710054143
  4. Brenda Nelson, PAPhysician Assistant1720119548
  5. Anissa Schymik, FNPFamily Nurse Practitioner1700406899
  6. Chelsea Trierweiler, FNPFamily Nurse Practitioner1679104483

Verify Mark Dean Christensen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersColorado Medical Board
    Search for license 56009
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Colorado license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Is this page about you? You can ask us to correct, restrict or remove it: how.

27% more Medicare Part D claims than the average family medicine physician in 2024

4,504 Medicare Part D claims for 398 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 37 claims were for opioids.

  1. Mark Christensen4,504
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium488 claims
  2. Levothyroxine Sodium255 claims
  3. Amlodipine Besylate194 claims
  4. Losartan Potassium158 claims
  5. Tamsulosin Hcl158 claims
  6. Lisinopril144 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

The practice group's MIPS final score for 2023 (Medicare payment program): 88.9 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score91.2
  2. Costout of 100 · 30%71.7
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $1,315.58

61 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Mark Christensen$1,315.58
  2. Specialty average$902.55

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Onpoint Medical Group LLCCastle Pines, CO

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Mark Dean Christensen among 3,563 family medicine physician records in Colorado

Mark Dean Christensen, MD is one of 3,563 family medicine physician records with a practice address in Colorado. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 67% of them.

  • NPI issued2011 · 67% of these records are older, 31% newer
  • In a Medicare fileYes · 76% of these records are
  • In the CMS Doctors and Clinicians fileYes · 58% of these records are
  • Graduated2009 · median 2008 among the 2,077 with a school on file
  • Record last updated2023 · 58% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

3 family medicine physician records list a practice address in Castle Pines

They are 3 of the 134 NPPES records with a practice address in Castle Pines, and 3,563 family medicine physician records in Colorado.

The 8 family medicine physician records with the nearest ZIP codes

  1. Nathalie Abisror, MDCastle Pines, CO 801081336634922
  2. Chad Boekes, M.D.Castle Rock, CO 801081538245816
  3. Jason Chu, M.D.Castle Pines, CO 801081649216136
  4. Olga Dobranowski, MDCastle Rock, CO 801081184943763
  5. Manoj Pawar, MDCastle Rock, CO 801081144277369
  6. Nicholas Shriver, MDCastle Rock, CO 801081669040713
  7. Michael Weston, DOCastle Rock, CO 801081316526510
  8. David Wood, D.O.Castle Rock, CO 801081184928715

Common questions

What is Mark Dean Christensen, MD's NPI number?

Mark Dean Christensen, MD's National Provider Identifier (NPI) is 1588944516, issued on Aug 22, 2011. An NPI identifies a provider in billing; it is not a license.

Where is Mark Dean Christensen, MD located?

The NPPES record lists a practice address at 7280 Lagae RD Ste J, Castle Pines, CO, 80108. Phone: (303) 814-0505. Providers update this record themselves, so call before visiting.

How can I verify Mark Dean Christensen, MD's license?

NPPES lists Colorado license number 56009, as entered by the provider. Search the Colorado Medical Board at https://dpo.colorado.gov/Medical. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Mark Dean Christensen, MD prescribe under Medicare Part D?

In 2024, Mark Dean Christensen, MD had 4,504 Medicare Part D claims for 398 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.

What is Mark Dean Christensen, MD's MIPS final score?

The 2023 MIPS final score is 88.9 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.