NPI registry status
Active
2026 NPPES data Sports Medicine (Family Medicine) Physician NPI 1811086705 D.O.
Verify on CMS → Mark Foster, D.O.
Sports Medicine (Family Medicine) Physician in Lakewood, Colorado.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 2,087 in Sports Medicine (Family Medicine) Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
727
Medicare Part D claims · 534 beneficiaries · Sports Medicine (Family Medicine) Physician avg: 1K
Generic prescribing
91%
generic claims · 8% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Mark Foster, D.O. filed 727 Medicare Part D claims in 2023 as a Sports Medicine (Family Medicine) Physician in Lakewood, Colorado, prescribing 91% generic.
- 727
- Part D claims, 2023
- 91%
- generic prescribing
- Likely
- board-certified (heuristic)
Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) - no proprietary rating or editorial opinion is applied.
Mark Foster, D.O.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
727 Top 29% higher than 71% of 1,370,886 prescribers
Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source CMS Medicare Part D Prescriber Public Use File · 2023
✓
Board certification likely (heuristic, not verified)
Mark Foster, D.O. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation - signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Mark Foster, D.O.?
Quality data not reportedPrimary specialty
Sports Medicine (Family Medicine) Physician
Medicare Part D claims
727 41% vs specialty avg
Specialty distribution in Colorado
How Sports Medicine (Family Medicine) Physician compares to other specialties among Colorado providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Sports Medicine (Family Medicine) Physician. Verify directly:
How MIPS and board certification work
The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.
Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).
Mark Foster, D.O. appears in the CMS NPPES registry as a Sports Medicine (Family Medicine) Physician provider holding D.O. credentials at 8383 W ALAMEDA AVE, Lakewood, CO, 80226, with a listed phone of (303) 338-4545. NPI 1811086705 was issued on 10/11/2006.
Medicare Part D records for calendar year 2023 show 727 prescription claims written by this provider, covering 534 Medicare beneficiaries and totaling roughly $14K in drug spend, split 8% brand-name and 91% generic by claim count, with an opioid prescribing rate of 8.1%.
Sports Medicine (Family Medicine) Physician is a narrow specialty nationwide, with 2,087 enrolled providers across 52 states and an average of 1,242 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline.
Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist, always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.
Practice Address
Provider Details
| NPI | 1811086705 |
|---|---|
| Specialty | Sports Medicine (Family Medicine) Physician |
| Credentials | D.O. |
| Gender | Male |
| NPI Issued | 10/11/2006 |
Hospital and facility affiliations
Facilities where Mark Foster, D.O. bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" - a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.
Colorado Permanente Medical Group PC
Denver, CO
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Brand vs generic prescribing mix · Generic-heavy
Mark Foster, D.O. - brand share 8.0%
Sports Medicine (Family Medicine) Physician average
8% brand-name claims vs 91% generic, on 727 2023 Medicare Part D claims.
The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
727
Total Claims
$14K
Total Drug Cost
534
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 801
- Total Day Supply
- 10,281
- Brand vs Generic
- 8% brand / 91% generic
- Brand Drug Cost
- $6K
- Generic Drug Cost
- $7K
- Opioid Claims
- 59 (8.1% rate)
- Antibiotic Claims
- 321
Patient Demographics
- Average Patient Age
- 74.3 years
- Avg HCC Risk Score
- 1.16
- Gender Split
- 61% female / 39% male
- Age Distribution
- <65: 30, 65-74: 251, 75-84: 190, 85+: 63
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Mark Foster, D.O. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Doxycycline Monohy…
Doxycycline Monohydrate
93 claims
- Prednisone
Prednisone
77 claims
- Amoxicillin-Clavul…
Amoxicillin-Clavulanate Potass
60 claims
- Cefuroxime
Cefuroxime
55 claims
- Nitrofurantoin Mon…
Nitrofurantoin Mono-Macro
44 claims
- Oxycodone Hcl 37
Oxycodone Hcl
37 claims
- Albuterol Sulfate … 34
Albuterol Sulfate Hfa
34 claims
- Meloxicam 27
Meloxicam
27 claims
| Drug | Claims |
|---|---|
| Doxycycline Monohydrate | 93 |
| Prednisone | 77 |
| Amoxicillin-Clavulanate Potass Amoxicillin/Potassium Clav | 60 |
| Cefuroxime Cefuroxime Axetil | 55 |
| Nitrofurantoin Mono-Macro Nitrofurantoin Monohyd/M-Cryst | 44 |
| Oxycodone Hcl | 37 |
| Albuterol Sulfate Hfa Albuterol Sulfate | 34 |
| Meloxicam | 27 |
| Ondansetron Odt Ondansetron | 26 |
| Sulfamethoxazole-Trimethoprim Sulfamethoxazole/Trimethoprim | 25 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Sports Medicine (Family Medicine) Physician in CO →
All providers in Colorado →
Compare specialties →
Sports Medicine (Family Medicine) Physician Overview
How Mark Foster, D.O. fits within the Sports Medicine (Family Medicine) Physician landscape nationally.
2,087
Sports Medicine (Family Medicine) Physician Providers in US
52
States with Sports Medicine (Family Medicine) Physician
1,242
Avg Claims per Provider
Mark Foster, D.O.'s 727 claims are below the specialty average of 1,242.
Nearby Sports Medicine (Family Medicine) Physician Providers in Colorado
Other clinicians with the same primary specialty enrolled in Colorado, drawn from the same CMS NPPES roster as Foster.
Dr. Bradley Abrahamson
M.D.
Fort Collins, CO
Dr. Sherrie Ballantine-Talmadge
D.O.
Boulder, CO
Dr. John Breck
D.O.
Boulder, CO
Dr. Lisa Brone
M.D.
Erie, CO
Dr. William Burton
M.D.
Boulder, CO
Compare Sports Medicine (Family Medicine) Physician nationally: see state-by-state distribution →
Before you book an appointment
Use this federal record as your verification checklist, not as a recommendation.
- Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
- Check the active license and any disciplinary history with the Colorado medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Sports Medicine (Family Medicine) Physician peer on Medicare volume and prescribing patterns. Compare providers
Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.
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Understanding Medicare Claims Data
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Frequently Asked Questions
What is Mark Foster, D.O.'s specialty? ▼
Mark Foster, D.O. specializes in Sports Medicine (Family Medicine) Physician and practices in Lakewood, Colorado. Credentials: D.O..
How much does Mark Foster, D.O. prescribe under Medicare Part D? ▼
In 2023, Mark Foster, D.O. wrote 727 Medicare Part D claims totaling $14K in drug costs for 534 beneficiaries.
Where is Mark Foster, D.O. located? ▼
Mark Foster, D.O. is located at 8383 W ALAMEDA AVE, Lakewood, CO, 80226. Phone: (303) 338-4545.
What is Mark Foster, D.O.'s NPI number? ▼
Mark Foster, D.O.'s National Provider Identifier (NPI) is 1811086705, issued on 10/11/2006.
Does Mark Foster, D.O. prescribe more brand-name or generic drugs? ▼
Mark Foster, D.O.'s prescribing is 8% brand-name and 91% generic drugs by claim count, with $6K in brand drug costs.
Does Mark Foster, D.O. prescribe opioids? ▼
Yes, Mark Foster, D.O. had 59 opioid claims in 2023 with an opioid prescribing rate of 8.1%.
How many Sports Medicine (Family Medicine) Physician providers are there in the US? ▼
There are 2,087 Sports Medicine (Family Medicine) Physician providers across 52 states in the US. The average Sports Medicine (Family Medicine) Physician provider writes 1,242 Medicare Part D claims per year.
What drugs does Mark Foster, D.O. prescribe most often? ▼
Based on 2023 Medicare Part D data, Mark Foster, D.O.'s most frequently prescribed drugs include Doxycycline Monohydrate, Prednisone, Amoxicillin-Clavulanate Potass. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Mark Foster, D.O. accept Medicare? ▼
Mark Foster, D.O. appears in CMS Medicare data with 727 Part D claims and 534 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Mark Foster, D.O.'s credentials? ▼
Mark Foster, D.O.'s NPI is 1811086705 with credentials D.O.. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.
Data Sources
View source datasets and methodology notes
- Provider Directory
- CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
- Specialty Classification
- NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
- Prescribing Data
- CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
- Limitations
- Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.
See our complete data methodology for details on how we collect and process government data.
Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).
Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology
Compiled from official public sources by the PlainDoctor editorial team.