NPI registry status
Active
2026 NPPES data Nephrology Physician NPI 1235229139 MD
Verify on CMS → Isaac Teitelbaum, MD
Nephrology Physician in Aurora, 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 10,569 in Nephrology 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
268
Medicare Part D claims · 44 beneficiaries · Nephrology Physician avg: 1K
Generic prescribing
88%
generic claims · 12% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
97.6/100
▲ 14 pts above national avg 83.1 · Exceptional
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
Isaac Teitelbaum, MD reported a CMS MIPS final score of 97.6/100 - above the 83.1 national average - and filed 268 Medicare Part D claims in 2023.
- 97.6/100
- MIPS score · +14 vs avg
- 268
- Part D claims, 2023
- 88%
- 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.
Isaac Teitelbaum, MD's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
98 Top 15% higher than 85% of 477,587 scored providers
Each bar is a band; taller bars hold more scored 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.
Source CMS Merit-based Incentive Payment System (MIPS) · 2023
Where Isaac Teitelbaum, MD sits
This provider among nephrology physician peers
Across the 2,476 nephrology physician providers who report both Medicare Part D prescribing and a MIPS quality score, Isaac Teitelbaum, MD writes more Part D claims than 14% of them and scores higher on MIPS quality than 88% - placing this provider in the lower-volume, high-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Part D claim volume vs MIPS quality, by specialty percentile
Each dot is one nephrology physician peer from a representative sample of 60; the gold marker is Isaac Teitelbaum, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Isaac Teitelbaum, MD 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 Isaac Teitelbaum, MD?
High performer (top quartile)Primary specialty
Nephrology Physician
Medicare Part D claims
268 82% vs specialty avg
MIPS final score
97.6/100 14.5 pts vs avg
Specialty distribution in Colorado
How Nephrology Physician compares to other specialties among Colorado providers
Medicare quality performance, MIPS
Isaac Teitelbaum, MD's 2023 MIPS final score plotted against the Nephrology Physician national average
- MIPS Final Score
- 97.6/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Nephrology Physician) - 97.6/100 vs national avg 83.1
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).
Isaac Teitelbaum, MD appears in the CMS NPPES registry as a Nephrology Physician provider holding MD credentials at 12605 E 16TH AVE, Aurora, CO, 80045, with a listed phone of (720) 848-0000. NPI 1235229139 was issued on 10/13/2006.
Medicare Part D records for calendar year 2023 show 268 prescription claims written by this provider, covering 44 Medicare beneficiaries and totaling roughly $41K in drug spend, split 12% brand-name and 88% generic by claim count. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 97.6/100 for the 2023 performance year (Quality 86.5), compared with the national average of 83.1.
Nephrology Physician is a mid-sized specialty nationwide, with 10,569 enrolled providers across 55 states and an average of 1,454 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 | 1235229139 |
|---|---|
| Specialty | Nephrology Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 10/13/2006 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
97.5814
Final Score
Avg: 83.1
86.5348
Quality
100
Promoting Interoperability
Reporting: Alternative Payment Model
Hospital and facility affiliations
Facilities where Isaac Teitelbaum, MD 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.
University Physicians Incorporated
Aurora, 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
Isaac Teitelbaum, MD - brand share 12.0%
Nephrology Physician average
12% brand-name claims vs 88% generic, on 268 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.
268
Total Claims
$41K
Total Drug Cost
44
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 513
- Total Day Supply
- 14,785
- Brand vs Generic
- 12% brand / 88% generic
- Brand Drug Cost
- $20K
- Generic Drug Cost
- $21K
Patient Demographics
- Average Patient Age
- 58.6 years
- Avg HCC Risk Score
- 8.46
- Gender Split
- 57% female / 43% male
- Age Distribution
- <65: 26, 65-74: 14, 75-84: N/A, 85+: N/A
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Isaac Teitelbaum, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Lisinopril
Lisinopril
34 claims
- Furosemide
Furosemide
21 claims
- Sevelamer Carbonate
Sevelamer Carbonate
18 claims
- Amlodipine Besylate
Amlodipine Besylate
17 claims
- Gentamicin Sulfate
Gentamicin Sulfate
14 claims
| Drug | Claims |
|---|---|
| Lisinopril | 34 |
| Furosemide | 21 |
| Sevelamer Carbonate | 18 |
| Amlodipine Besylate | 17 |
| Gentamicin Sulfate | 14 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Nephrology Physician Overview
How Isaac Teitelbaum, MD fits within the Nephrology Physician landscape nationally.
10,569
Nephrology Physician Providers in US
55
States with Nephrology Physician
1,454
Avg Claims per Provider
Isaac Teitelbaum, MD's 268 claims are below the specialty average of 1,454.
Nearby Nephrology Physician Providers in Colorado
Other clinicians with the same primary specialty enrolled in Colorado, drawn from the same CMS NPPES roster as Teitelbaum.
Dr. Joseph Abdallah
M.D.
Westminster, CO
Dr. Nilesh Ahuja
MD
Fort Collins, CO
Dr. Katherine Akers
M.D.
Westminster, CO
Dr. Yisfalem Alamdew
M.D.
Parker, CO
Dr. Mark Albright
MD
Colorado Springs, CO
Compare Nephrology 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 Nephrology 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 Isaac Teitelbaum, MD's specialty? ▼
Isaac Teitelbaum, MD specializes in Nephrology Physician and practices in Aurora, Colorado. Credentials: MD.
How much does Isaac Teitelbaum, MD prescribe under Medicare Part D? ▼
In 2023, Isaac Teitelbaum, MD wrote 268 Medicare Part D claims totaling $41K in drug costs for 44 beneficiaries.
What is Isaac Teitelbaum, MD's Medicare quality score? ▼
Isaac Teitelbaum, MD has a CMS MIPS Final Score of 97.6/100 (Quality: 86.5). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Isaac Teitelbaum, MD located? ▼
Isaac Teitelbaum, MD is located at 12605 E 16TH AVE, Aurora, CO, 80045. Phone: (720) 848-0000.
What is Isaac Teitelbaum, MD's NPI number? ▼
Isaac Teitelbaum, MD's National Provider Identifier (NPI) is 1235229139, issued on 10/13/2006.
Does Isaac Teitelbaum, MD prescribe more brand-name or generic drugs? ▼
Isaac Teitelbaum, MD's prescribing is 12% brand-name and 88% generic drugs by claim count, with $20K in brand drug costs.
How many Nephrology Physician providers are there in the US? ▼
There are 10,569 Nephrology Physician providers across 55 states in the US. The average Nephrology Physician provider writes 1,454 Medicare Part D claims per year.
What drugs does Isaac Teitelbaum, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Isaac Teitelbaum, MD's most frequently prescribed drugs include Lisinopril, Furosemide, Sevelamer Carbonate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Isaac Teitelbaum, MD accept Medicare? ▼
Isaac Teitelbaum, MD appears in CMS Medicare data with 268 Part D claims and 44 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Isaac Teitelbaum, MD's credentials? ▼
Isaac Teitelbaum, MD's NPI is 1235229139 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 (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
Compiled from official public sources by the PlainDoctor editorial team.
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.