NPI registry status
Active
2026 NPPES data Geriatric Medicine (Internal Medicine) Physician NPI 1881626141 MD
Verify on CMS → Sharyn Horwitz, MD
Geriatric Medicine (Internal Medicine) Physician in Washington, District of Columbia.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 4,171 in Geriatric Medicine (Internal 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
34
Medicare Part D claims · Geriatric Medicine (Internal Medicine) Physician avg: 4K
What the federal data shows
Sharyn Horwitz, MD filed 34 Medicare Part D claims in 2023 as a Geriatric Medicine (Internal Medicine) Physician in Washington, District of Columbia.
- 34
- Part D claims, 2023
- ≥0th
- pct by Part D claim volume (lower-bound band)
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 Sharyn Horwitz, MD
Federal records show an active NPI with Medicare Part D prescribing activity — verifiable registry data, not a proprietary rating.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1881626141), first enumerated 07/07/2006.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 34 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
Board certification signal
Practices in an ABMS-board-eligible specialty; board certification not confirmed in federal records.
- 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 1881626141 · Geriatric Medicine (Internal Medicine) Physician
NPI-10 · ENUM-LEGACY · TAX-NARROW · RX-TRACE · BOOK-THIN · PHOTO-ENUM
- NPI-10 1881626141
- ENUM-LEGACY 2006
- TAX-NARROW 4,171
- RX-TRACE 34
- BOOK-THIN 21 in District of Columbia
- PHOTO-ENUM Roy Fried · 2006
Sharyn Horwitz, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
34 ≥ 0th percentile 0% of 1,370,886 prescribers are in lower value bands
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.
The percentile is a conservative 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2023
◑
Board-eligible specialty (heuristic, not verified)
Sharyn Horwitz, MD practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Sharyn Horwitz, MD?
Quality data not reportedPrimary specialty
Geriatric Medicine (Internal Medicine) Physician
Medicare Part D claims
34 99% vs specialty avg
Specialty distribution in District of Columbia
How Geriatric Medicine (Internal Medicine) Physician compares to other specialties among District of Columbia 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 Geriatric Medicine (Internal 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).
Practice Address
Provider Details
| NPI | 1881626141 |
|---|---|
| Specialty | Geriatric Medicine (Internal Medicine) Physician |
| Credentials | MD |
| Gender | Female |
| NPI Issued | 07/07/2006 |
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
34
Total Claims
$4K
Total Drug Cost
N/A
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 102
- Total Day Supply
- 3,060
- Generic Drug Cost
- $34
Patient Demographics
- Average Patient Age
- 73.0 years
- Avg HCC Risk Score
- 0.42
More Geriatric Medicine (Internal Medicine) Physician in DC →
All providers in District of Columbia →
Compare specialties →
Geriatric Medicine (Internal Medicine) Physician Overview
How Sharyn Horwitz, MD fits within the Geriatric Medicine (Internal Medicine) Physician landscape nationally.
4,171
Geriatric Medicine (Internal Medicine) Physician Providers in US
52
States with Geriatric Medicine (Internal Medicine) Physician
4,450
Avg Claims per Provider
Sharyn Horwitz, MD's 34 claims are below the specialty average of 4,450.
Nationwide Geriatric Medicine (Internal Medicine) Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Horwitz, both outside District of Columbia so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2006)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Geriatric Medicine (Internal Medicine) Physician Providers in District of Columbia
Other clinicians with the same primary specialty enrolled in District of Columbia, drawn from the same CMS NPPES roster as Horwitz.
One of 21 Geriatric Medicine (Internal Medicine) Physician providers enrolled in District of Columbia, 5 are shown here.
Frequently Asked Questions
What is Sharyn Horwitz, MD's specialty? ▼
Sharyn Horwitz, MD specializes in Geriatric Medicine (Internal Medicine) Physician and practices in Washington, District of Columbia. Credentials: MD.
How much does Sharyn Horwitz, MD prescribe under Medicare Part D? ▼
In 2023, Sharyn Horwitz, MD wrote 34 Medicare Part D claims totaling $4K in drug costs for N/A beneficiaries.
Where is Sharyn Horwitz, MD located? ▼
Sharyn Horwitz, MD is located at 1160 VARNUM ST NE, Washington, DC, 20017. Phone: (240) 351-8962.
What is Sharyn Horwitz, MD's NPI number? ▼
Sharyn Horwitz, MD's National Provider Identifier (NPI) is 1881626141, issued on 07/07/2006.
How many Geriatric Medicine (Internal Medicine) Physician providers are there in the US? ▼
There are 4,171 Geriatric Medicine (Internal Medicine) Physician providers across 52 states in the US. The average Geriatric Medicine (Internal Medicine) Physician provider writes 4,450 Medicare Part D claims per year.
Does Sharyn Horwitz, MD accept Medicare? ▼
Sharyn Horwitz, MD appears in CMS Medicare data with 34 Part D claims and N/A Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Sharyn Horwitz, MD's credentials? ▼
Sharyn Horwitz, MD's NPI is 1881626141 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.
- 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.