NPI registry status
Active
2026 NPPES data Cardiovascular Disease Physician NPI 1770529083 MD
Verify on CMS → Charles Lowenstein, MD
Cardiovascular Disease Physician in Baltimore, Maryland.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 25,298 in Cardiovascular Disease 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
657
Medicare Part D claims · 104 beneficiaries · Cardiovascular Disease Physician avg: 3K
Generic prescribing
91%
generic claims · 9% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
74.4/100
▼ 9 pts below national avg 83.5 · Mid-tier
Industry payments
$11.2K
2 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Charles Lowenstein, MD reported a CMS MIPS final score of 74.4/100 - below the 83.5 national average - and filed 657 Medicare Part D claims in 2024.
- 74.4/100
- MIPS score · -9 vs avg
- 657
- Part D claims, 2024
- 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.
Federal trust snapshot
What official records show about Charles Lowenstein, 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 1770529083), first enumerated 06/22/2006.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 657 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 74.4/100 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.
- Reported
Hospital affiliations
2 CMS Care Compare hospital affiliations on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- Reported
Industry payment transparency
$11.2K in reported industry payments (2 transfers) in 2024 under the federal Sunshine Act — disclosed transfers of value, not a quality rating.
Source: CMS Open Payments
- 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 1770529083 · Cardiovascular Disease Physician
NPI-10 · ENUM-LEGACY · TAX-MID · MIPS-BELOW · RX-LIGHT · BOOK-LIGHT · PHOTO-FINISH
- NPI-10 1770529083
- ENUM-LEGACY 2006
- TAX-MID 25K Cardiovascular Disease
- MIPS-BELOW 74.4/100
- RX-LIGHT 657
- BOOK-LIGHT 594 in Maryland
- PHOTO-FINISH Marios Arvanitis, M.D. · ±0.0
MIPS final-score neighbourhood
Same-specialty nationwide peers by CMS final score, not geographic proximity
- Lowenstein · thi…
Lowenstein · this provider
74.4 MIPS pts
- Andi Shahu, MD ·…
Andi Shahu, MD
74.4 MIPS pts
- Marios Arvanitis…
Marios Arvanitis, M.D.
74.4 MIPS pts
- Michael Chilazi,…
Michael Chilazi, MD
74.4 MIPS pts
- Karan Desai, M.D…
Karan Desai, M.D.
74.4 MIPS pts
What this shows Nearest measured MIPS peers for this NUCC specialty (2023 performance year).
Charles Lowenstein, 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.
74 ≥ 13th percentile 13% 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 Charles Lowenstein, MD sits
This provider among cardiovascular disease physician peers
Across the 7,999 cardiovascular disease physician providers who report both Medicare Part D prescribing and a MIPS quality score, Charles Lowenstein, MD writes more Part D claims than 18% of them and scores higher on MIPS quality than 13% - placing this provider in the lower-volume, lower-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Each dot is one cardiovascular disease physician peer from a representative sample of 60; the gold marker is Charles Lowenstein, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Charles Lowenstein, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 2 hospital affiliations - 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 Charles Lowenstein, MD?
Below national averagePrimary specialty
Cardiovascular Disease Physician
Medicare Part D claims
657 79% vs specialty avg
MIPS final score
74.4/100 9.1 pts vs avg
Specialty distribution in Maryland
How Cardiovascular Disease Physician compares to other specialties among Maryland providers
Medicare quality performance, MIPS
Charles Lowenstein, MD's 2023 MIPS final score plotted against the Cardiovascular Disease Physician national average
- MIPS Final Score
- 74.4/100
- 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 | 1770529083 |
|---|---|
| Specialty | Cardiovascular Disease Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 06/22/2006 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
74.3962
Final Score
Measured-score avg: 83.5
64.7185
Quality
52.4354
Cost
97
Promoting Interoperability
Reporting: Group practice
Hospital and facility affiliations
Facilities where Charles Lowenstein, 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.
Johns Hopkins University
Baltimore, MD
Johns Hopkins University
Middle River, MD
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Industry payments received (2024) - CMS Open Payments transparency data
The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for Charles Lowenstein, MD. Source: openpaymentsdata.cms.gov.
Total received
$11.2K
Largest payer
Canon Medical Systems Corporation
Most common payment type
Travel and Lodging
Industry payments are not necessarily indicators of bias, they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.
Brand vs generic prescribing mix · Generic-heavy
Charles Lowenstein, MD - brand share 9.0%
Cardiovascular Disease Physician average
9% brand-name claims vs 91% generic, on 657 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.
657
Total Claims
$73K
Total Drug Cost
104
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,422.733
- Total Day Supply
- 42,482
- Brand vs Generic
- 9% brand / 91% generic
- Brand Drug Cost
- $65K
- Generic Drug Cost
- $8K
Patient Demographics
- Average Patient Age
- 75.7 years
- Avg HCC Risk Score
- 1.42
- Gender Split
- 45% female / 55% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Charles Lowenstein, MD prescribes most
Top Medicare Part D drugs by claim count, 2024
- Atorvastatin Calcium
Atorvastatin Calcium
80 claims
- Losartan Potassium
Losartan Potassium
78 claims
- Carvedilol
Carvedilol
71 claims
- Hydrochlorothiazide
Hydrochlorothiazide
67 claims
- Amlodipine Besylate
Amlodipine Besylate
50 claims
- Rosuvastatin Calcium
Rosuvastatin Calcium
49 claims
- Metoprolol Succinate
Metoprolol Succinate
34 claims
- Eliquis
Eliquis
32 claims
| Drug | Claims |
|---|---|
| Atorvastatin Calcium | 80 |
| Losartan Potassium | 78 |
| Carvedilol | 71 |
| Hydrochlorothiazide | 67 |
| Amlodipine Besylate | 50 |
| Rosuvastatin Calcium | 49 |
| Metoprolol Succinate | 34 |
| Eliquis Apixaban | 32 |
| Lisinopril | 24 |
| Chlorthalidone | 22 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Cardiovascular Disease Physician Overview
How Charles Lowenstein, MD fits within the Cardiovascular Disease Physician landscape nationally.
25,298
Cardiovascular Disease Physician Providers in US
54
States with Cardiovascular Disease Physician
3,149
Avg Claims per Provider
Charles Lowenstein, MD's 657 claims are below the specialty average of 3,149.
Nationwide Cardiovascular Disease Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Lowenstein, both outside Maryland so the neighborhoods are not geographic containment.
Similar MIPS final score
Nearest same-specialty clinicians by CMS MIPS final score (74.4 here).
Same NPPES enumeration year (2006)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Cardiovascular Disease Physician Providers in Maryland
Other clinicians with the same primary specialty enrolled in Maryland, drawn from the same CMS NPPES roster as Lowenstein.
One of 594 Cardiovascular Disease Physician providers enrolled in Maryland, 5 are shown here.
Dr. Seyed Hossein Aalaei-Andabili
M.D
Baltimore, MD
Dr. Leith Abdulla
M.D.
Olney, MD
Dr. Rasaq Abu
M.D.
Berwyn Heights, MD
Dr. Mohammed Abuzahra
MD
Baltimore, MD
Dr. Stephen Achuff
M.D.
Baltimore, MD
Compare Cardiovascular Disease Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Charles Lowenstein, MD's specialty? ▼
Charles Lowenstein, MD specializes in Cardiovascular Disease Physician and practices in Baltimore, Maryland. Credentials: MD.
How much does Charles Lowenstein, MD prescribe under Medicare Part D? ▼
In 2024, Charles Lowenstein, MD wrote 657 Medicare Part D claims totaling $73K in drug costs for 104 beneficiaries.
What is Charles Lowenstein, MD's Medicare quality score? ▼
Charles Lowenstein, MD has a CMS MIPS Final Score of 74.4/100 (Quality: 64.7, Cost: 52.4). 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 Charles Lowenstein, MD located? ▼
Charles Lowenstein, MD is located at 600 N WOLFE ST, Baltimore, MD, 21287. Phone: (410) 502-0391.
What is Charles Lowenstein, MD's NPI number? ▼
Charles Lowenstein, MD's National Provider Identifier (NPI) is 1770529083, issued on 06/22/2006.
Does Charles Lowenstein, MD prescribe more brand-name or generic drugs? ▼
Charles Lowenstein, MD's prescribing is 9% brand-name and 91% generic drugs by claim count, with $65K in brand drug costs.
How many Cardiovascular Disease Physician providers are there in the US? ▼
There are 25,298 Cardiovascular Disease Physician providers across 54 states in the US. The average Cardiovascular Disease Physician provider writes 3,149 Medicare Part D claims per year.
What drugs does Charles Lowenstein, MD prescribe most often? ▼
Based on 2024 Medicare Part D data, Charles Lowenstein, MD's most frequently prescribed drugs include Atorvastatin Calcium, Losartan Potassium, Carvedilol. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Charles Lowenstein, MD accept Medicare? ▼
Charles Lowenstein, MD appears in CMS Medicare data with 657 Part D claims and 104 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Charles Lowenstein, MD's credentials? ▼
Charles Lowenstein, MD's NPI is 1770529083 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.