NPI registry status
Active
2026 NPPES data Surgery Physician NPI 1598925521 MD
Verify on CMS → Christopher Engles, MD
Surgery Physician in Tulsa, Oklahoma.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 36,778 in Surgery 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
921
Medicare Part D claims · 259 beneficiaries · Surgery Physician avg: 174
Generic prescribing
90%
generic claims · 10% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
89.4/100
▲ 6 pts above national avg 83.5 · Exceptional
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Christopher Engles, MD reported a CMS MIPS final score of 89.4/100 - above the 83.5 national average - and filed 921 Medicare Part D claims in 2024.
- 89.4/100
- MIPS score · +6 vs avg
- 921
- Part D claims, 2024
- 90%
- 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.
Federal trust snapshot
What official records show about Christopher Engles, MD
Federal records show an active NPI with both Medicare prescribing volume and a measured CMS quality score — objective registry data, not patient reviews.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1598925521), first enumerated 06/12/2008.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 921 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
CMS quality reporting (MIPS)
Reported a CMS MIPS final score of 89.4/100 in the Quality Payment Program — a federal quality measure, not a patient review.
Source: CMS Quality Payment Program
- Reported
Board certification signal
Heuristic suggests board-certified status based on ABMS-eligible specialty taxonomy plus active CMS participation signals — not a direct ABMS verification.
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
CMS NPPES provider registry desk
NPI 1598925521 · Surgery Physician
NPI-10 · ENUM-MID · TAX-MID · MIPS-ABOVE · RX-LIGHT · BOOK-THIN · PHOTO-FINISH
- NPI-10 1598925521
- ENUM-MID 2008
- TAX-MID 37K Surgery Physician
- MIPS-ABOVE 89.4/100
- RX-LIGHT 921
- BOOK-THIN 402 in Oklahoma
- PHOTO-FINISH Ian Cassaday · ±0.0
MIPS final-score neighbourhood
Same-specialty nationwide peers by CMS final score, not geographic proximity
- Engles · this pr…
Engles · this provider
89.4 MIPS pts
- Abraham Kaslow ·…
Abraham Kaslow
89.4 MIPS pts
- Ian Cassaday · n…
Ian Cassaday
89.4 MIPS pts
- Jennifer Wentzel…
Jennifer Wentzel
89.4 MIPS pts
- Phong Dargon · n…
Phong Dargon
89.4 MIPS pts
What this shows Nearest measured MIPS peers for this NUCC specialty (2023 performance year).
Christopher Engles, MD'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.
89 ≥ 56th percentile 56% 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 Christopher Engles, MD sits
This provider among surgery physician peers
Across the 7,271 surgery physician providers who report both Medicare Part D prescribing and a MIPS quality score, Christopher Engles, MD writes more Part D claims than 98% of them and scores higher on MIPS quality than 55% - placing this provider in the high-volume, high-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Each dot is one surgery physician peer from a representative sample of 60; the gold marker is Christopher Engles, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Christopher Engles, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting - 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 Christopher Engles, MD?
High performer (top quartile)Primary specialty
Surgery Physician
Medicare Part D claims
921 5× vs specialty avg
MIPS final score
89.4/100 5.9 pts vs avg
Specialty distribution in Oklahoma
How Surgery Physician compares to other specialties among Oklahoma providers
Medicare quality performance, MIPS
Christopher Engles, MD's 2023 MIPS final score plotted against the Surgery Physician national average
- MIPS Final Score
- 89.4/100
- 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).
Practice Address
Provider Details
| NPI | 1598925521 |
|---|---|
| Specialty | Surgery Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 06/12/2008 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
89.3965
Final Score
Measured-score avg: 83.5
91.9104
Quality
72.7446
Cost
100
Promoting Interoperability
Reporting: Group practice
Brand vs generic prescribing mix · Typical
Christopher Engles, MD - brand share 10.0%
Surgery Physician average
10% brand-name claims vs 90% generic, on 921 2024 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 2024.
921
Total Claims
$69K
Total Drug Cost
259
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,940.333
- Total Day Supply
- 58,138
- Brand vs Generic
- 10% brand / 90% generic
- Brand Drug Cost
- $49K
- Generic Drug Cost
- $21K
Patient Demographics
- Average Patient Age
- 75.0 years
- Avg HCC Risk Score
- 1.52
- Gender Split
- 12% female / 88% male
- Age Distribution
- <65: 18, 65-74: 99, 75-84: 115, 85+: 27
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Christopher Engles, MD prescribes most
Top Medicare Part D drugs by claim count, 2024
- Tamsulosin Hcl
Tamsulosin Hcl
225 claims
- Finasteride
Finasteride
171 claims
- Alfuzosin Hcl Er
Alfuzosin Hcl Er
163 claims
- Oxybutynin Chlorid…
Oxybutynin Chloride Er
117 claims
- Myrbetriq 88
Myrbetriq
88 claims
- Dutasteride 66
Dutasteride
66 claims
- Silodosin 17
Silodosin
17 claims
- Solifenacin Succin… 17
Solifenacin Succinate
17 claims
| Drug | Claims |
|---|---|
| Tamsulosin Hcl | 225 |
| Finasteride | 171 |
| Alfuzosin Hcl Er Alfuzosin Hcl | 163 |
| Oxybutynin Chloride Er Oxybutynin Chloride | 117 |
| Myrbetriq Mirabegron | 88 |
| Dutasteride | 66 |
| Silodosin | 17 |
| Solifenacin Succinate | 17 |
| Tolterodine Tartrate Er Tolterodine Tartrate | 16 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Surgery Physician Overview
How Christopher Engles, MD fits within the Surgery Physician landscape nationally.
36,778
Surgery Physician Providers in US
56
States with Surgery Physician
174
Avg Claims per Provider
Christopher Engles, MD's 921 claims are above the specialty average of 174.
Nationwide Surgery Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Engles, both outside Oklahoma so the neighborhoods are not geographic containment.
Similar MIPS final score
Nearest same-specialty clinicians by CMS MIPS final score (89.4 here).
Same NPPES enumeration year (2008)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Surgery Physician Providers in Oklahoma
Other clinicians with the same primary specialty enrolled in Oklahoma, drawn from the same CMS NPPES roster as Engles.
One of 402 Surgery Physician providers enrolled in Oklahoma, 5 are shown here.
Nitin Abrol
Oklahoma City, OK
Dr. Haley Adams
DO
Grove, OK
Dr. Larry Adams
MD
Edmond, OK
Dr. Celeste Adrian
M.D.
Ada, OK
Dr. Carson Agee
M.D.
Oklahoma City, OK
Compare Surgery Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Christopher Engles, MD's specialty? ▼
Christopher Engles, MD specializes in Surgery Physician and practices in Tulsa, Oklahoma. Credentials: MD.
How much does Christopher Engles, MD prescribe under Medicare Part D? ▼
In 2024, Christopher Engles, MD wrote 921 Medicare Part D claims totaling $69K in drug costs for 259 beneficiaries.
What is Christopher Engles, MD's Medicare quality score? ▼
Christopher Engles, MD has a CMS MIPS Final Score of 89.4/100 (Quality: 91.9, Cost: 72.7). 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 Christopher Engles, MD located? ▼
Christopher Engles, MD is located at 6585 S YALE AVE, Tulsa, OK, 74136. Phone: (918) 502-5930.
What is Christopher Engles, MD's NPI number? ▼
Christopher Engles, MD's National Provider Identifier (NPI) is 1598925521, issued on 06/12/2008.
Does Christopher Engles, MD prescribe more brand-name or generic drugs? ▼
Christopher Engles, MD's prescribing is 10% brand-name and 90% generic drugs by claim count, with $49K in brand drug costs.
How many Surgery Physician providers are there in the US? ▼
There are 36,778 Surgery Physician providers across 56 states in the US. The average Surgery Physician provider writes 174 Medicare Part D claims per year.
What drugs does Christopher Engles, MD prescribe most often? ▼
Based on 2024 Medicare Part D data, Christopher Engles, MD's most frequently prescribed drugs include Tamsulosin Hcl, Finasteride, Alfuzosin Hcl Er. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Christopher Engles, MD accept Medicare? ▼
Christopher Engles, MD appears in CMS Medicare data with 921 Part D claims and 259 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Christopher Engles, MD's credentials? ▼
Christopher Engles, MD's NPI is 1598925521 with credentials MD. 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 (2024). 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 August 2026 (NPPES) / 2024 (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 August 2026.