NPI registry status
Active
2026 NPPES data Family Medicine Physician NPI 1285743385 M.D.
Verify on CMS → Ann Engel, M.D.
Family Medicine Physician in Castle Rock, 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 147,760 in 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
3K
Medicare Part D claims · 308 beneficiaries · Family Medicine Physician avg: 3K
Generic prescribing
86%
generic claims · 14% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
77.2/100
▼ 6 pts below national avg 83.5 · Above neutral
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
Ann Engel, M.D. reported a CMS MIPS final score of 77.2/100 - below the 83.5 national average - and filed 2,997 Medicare Part D claims in 2023.
- 77.2/100
- MIPS score · -6 vs avg
- 3K
- Part D claims, 2023
- 86%
- 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.
Ann Engel, M.D.'s MIPS score vs every measured U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure. Clinicians whose score CMS assigned without scoring any category are excluded.
77 ≥ 20th percentile 20% of 454,083 measured providers are in lower value bands
Each bar is a band; taller bars hold more measured providers. 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.
The percentile is a conservative whole-score-point band: it counts only measured clinicians in lower score bands. A CMS MIPS metric is not a recommendation or a clinical-quality rating by PlainDoctor. See methodology § corpus placement.
Source CMS Merit-based Incentive Payment System (MIPS) · 2023
Where Ann Engel, M.D. sits
This provider among family medicine physician peers
Across the 21,266 family medicine physician providers who report both Medicare Part D prescribing and a MIPS quality score, Ann Engel, M.D. writes more Part D claims than 54% of them and scores higher on MIPS quality than 21% - placing this provider in the high-volume, lower-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Each dot is one family medicine physician peer from a representative sample of 60; the gold marker is Ann Engel, M.D.. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Ann Engel, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 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 Ann Engel, M.D.?
Below national averagePrimary specialty
Family Medicine Physician
Medicare Part D claims
2,997 12% vs specialty avg
MIPS final score
77.2/100 6.3 pts vs avg
Specialty distribution in Colorado
How Family Medicine Physician compares to other specialties among Colorado providers
Medicare quality performance, MIPS
Ann Engel, M.D.'s 2023 MIPS final score plotted against the Family Medicine Physician national average
- MIPS Final Score
- 77.2/100
- vs 83.5 national avg · 2023 performance year
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).
Ann Engel, M.D. appears in the CMS NPPES registry as a Family Medicine Physician provider holding M.D. credentials at 4344 WOODLANDS BLVD STE 260, Castle Rock, CO, 80104, with a listed phone of (303) 649-3155. NPI 1285743385 was issued on 08/30/2006.
Medicare Part D records for calendar year 2023 show 2,997 prescription claims written by this provider, covering 308 Medicare beneficiaries and totaling roughly $257K in drug spend, split 14% brand-name and 86% generic by claim count. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 77.2/100 for the 2023 performance year (Quality 80.3, Cost 59.5), compared with the 83.5 average among clinicians with a measured score.
Family Medicine Physician is a high-volume specialty nationwide, with 147,760 enrolled providers across 56 states and an average of 3,418 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 | 1285743385 |
|---|---|
| Specialty | Family Medicine Physician |
| Credentials | M.D. |
| Gender | Female |
| NPI Issued | 08/30/2006 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
77.1751
Final Score
Measured-score avg: 83.5
80.2782
Quality
59.4721
Cost
81
Promoting Interoperability
Reporting: Group practice
Hospital and facility affiliations
Facilities where Ann Engel, M.D. 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.
Portercare Adventist Health System
Castle Rock, 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 · Typical
Ann Engel, M.D. - brand share 14.0%
Family Medicine Physician average
14% brand-name claims vs 86% generic, on 2,997 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.
2,997
Total Claims
$257K
Total Drug Cost
308
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 6,782
- Total Day Supply
- 198,661
- Brand vs Generic
- 14% brand / 86% generic
- Brand Drug Cost
- $206K
- Generic Drug Cost
- $51K
- Antibiotic Claims
- 90
Patient Demographics
- Average Patient Age
- 74.2 years
- Avg HCC Risk Score
- 0.98
- Gender Split
- 70% female / 30% male
- Age Distribution
- <65: 12, 65-74: 163, 75-84: 105, 85+: 28
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Ann Engel, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Atorvastatin Calcium
Atorvastatin Calcium
283 claims
- Levothyroxine Sodium
Levothyroxine Sodium
235 claims
- Losartan Potassium
Losartan Potassium
145 claims
- Lisinopril 104
Lisinopril
104 claims
- Rosuvastatin Calcium 95
Rosuvastatin Calcium
95 claims
- Metoprolol Succinate 84
Metoprolol Succinate
84 claims
- Amlodipine Besylate 83
Amlodipine Besylate
83 claims
- Metformin Hcl Er 75
Metformin Hcl Er
75 claims
| Drug | Claims |
|---|---|
| Atorvastatin Calcium | 283 |
| Levothyroxine Sodium | 235 |
| Losartan Potassium | 145 |
| Lisinopril | 104 |
| Rosuvastatin Calcium | 95 |
| Metoprolol Succinate | 84 |
| Amlodipine Besylate | 83 |
| Metformin Hcl Er Metformin Hcl | 75 |
| Omeprazole | 71 |
| Alendronate Sodium | 50 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Family Medicine Physician Overview
How Ann Engel, M.D. fits within the Family Medicine Physician landscape nationally.
147,760
Family Medicine Physician Providers in US
56
States with Family Medicine Physician
3,418
Avg Claims per Provider
Ann Engel, M.D.'s 2,997 claims are below the specialty average of 3,418.
Nearby Family Medicine Physician Providers in Colorado
Other clinicians with the same primary specialty enrolled in Colorado, drawn from the same CMS NPPES roster as Engel.
One of 3,367 Family Medicine Physician providers enrolled in Colorado, 5 are shown here.
Dr. Eric Abbott
D.O.
Colorado Springs, CO
Dr. John Abbott
D.O.
Lamar, CO
Dr. Rasha Abdelsalam
MD
Denver, CO
Dr. Baiju Abdulla
M.B.B.S.
Colorado Springs, CO
Dr. Nathalie Abisror
MD
Castle Pines, CO
Compare 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 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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Frequently Asked Questions
What is Ann Engel, M.D.'s specialty? ▼
Ann Engel, M.D. specializes in Family Medicine Physician and practices in Castle Rock, Colorado. Credentials: M.D..
How much does Ann Engel, M.D. prescribe under Medicare Part D? ▼
In 2023, Ann Engel, M.D. wrote 2,997 Medicare Part D claims totaling $257K in drug costs for 308 beneficiaries.
What is Ann Engel, M.D.'s Medicare quality score? ▼
Ann Engel, M.D. has a CMS MIPS Final Score of 77.2/100 (Quality: 80.3, Cost: 59.5). The average MIPS Final Score across the 454,083 clinicians with at least one published category score is 83.5; clinicians whose score CMS assigned without scoring any category are excluded from that average. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Ann Engel, M.D. located? ▼
Ann Engel, M.D. is located at 4344 WOODLANDS BLVD STE 260, Castle Rock, CO, 80104. Phone: (303) 649-3155.
What is Ann Engel, M.D.'s NPI number? ▼
Ann Engel, M.D.'s National Provider Identifier (NPI) is 1285743385, issued on 08/30/2006.
Does Ann Engel, M.D. prescribe more brand-name or generic drugs? ▼
Ann Engel, M.D.'s prescribing is 14% brand-name and 86% generic drugs by claim count, with $206K in brand drug costs.
How many Family Medicine Physician providers are there in the US? ▼
There are 147,760 Family Medicine Physician providers across 56 states in the US. The average Family Medicine Physician provider writes 3,418 Medicare Part D claims per year.
What drugs does Ann Engel, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Ann Engel, M.D.'s most frequently prescribed drugs include Atorvastatin Calcium, Levothyroxine Sodium, Losartan Potassium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Ann Engel, M.D. accept Medicare? ▼
Ann Engel, M.D. appears in CMS Medicare data with 2,997 Part D claims and 308 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Ann Engel, M.D.'s credentials? ▼
Ann Engel, M.D.'s NPI is 1285743385 with credentials M.D.. 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.
- Quality Performance
- CMS Merit-based Incentive Payment System (MIPS) - 2023 performance year.
- 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
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.