NPI registry status
Active
2026 NPPES data Obstetrics & Gynecology Physician NPI 1912998790 MD
Verify on CMS → Israel Alter, MD
Obstetrics & Gynecology Physician in Bethesda, 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 44,313 in Obstetrics & Gynecology 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
160
Medicare Part D claims · 45 beneficiaries · Obstetrics & Gynecology Physician avg: 179
Generic prescribing
84%
generic claims · 16% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
52.2/100
▼ 31 pts below national avg 83.1 · Mid-tier
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
Israel Alter, MD reported a CMS MIPS final score of 52.2/100 - below the 83.1 national average - and filed 160 Medicare Part D claims in 2023.
- 52.2/100
- MIPS score · -31 vs avg
- 160
- Part D claims, 2023
- 84%
- 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.
Israel Alter, MD's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
52 4th percentile higher than 4% 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 Israel Alter, MD sits
This provider among obstetrics & gynecology physician peers
Across the 7,413 obstetrics & gynecology physician providers who report both Medicare Part D prescribing and a MIPS quality score, Israel Alter, MD writes more Part D claims than 67% of them and scores higher on MIPS quality than 1% - placing this provider in the high-volume, lower-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 obstetrics & gynecology physician peer from a representative sample of 60; the gold marker is Israel Alter, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Israel Alter, 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 Israel Alter, MD?
Below national averagePrimary specialty
Obstetrics & Gynecology Physician
Medicare Part D claims
160 11% vs specialty avg
MIPS final score
52.2/100 30.9 pts vs avg
Specialty distribution in Maryland
How Obstetrics & Gynecology Physician compares to other specialties among Maryland providers
Medicare quality performance, MIPS
Israel Alter, MD's 2023 MIPS final score plotted against the Obstetrics & Gynecology Physician national average
- MIPS Final Score
- 52.2/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Obstetrics & Gynecology Physician) - 52.2/100 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).
Israel Alter, MD appears in the CMS NPPES registry as a Obstetrics & Gynecology Physician provider holding MD credentials at 10215 FERNWOOD RD, Bethesda, MD, 20817, with a listed phone of (301) 530-2235. NPI 1912998790 was issued on 11/02/2005.
Medicare Part D records for calendar year 2023 show 160 prescription claims written by this provider, covering 45 Medicare beneficiaries and totaling roughly $18K in drug spend, split 16% brand-name and 84% generic by claim count. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 52.2/100 for the 2023 performance year (Quality 14.3, Cost 53.7), compared with the national average of 83.1.
Obstetrics & Gynecology Physician is a mid-sized specialty nationwide, with 44,313 enrolled providers across 56 states and an average of 179 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 | 1912998790 |
|---|---|
| Specialty | Obstetrics & Gynecology Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 11/02/2005 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
52.1583
Final Score
Avg: 83.1
14.2857
Quality
53.742
Cost
67
Promoting Interoperability
Reporting: Group practice
Hospital and facility affiliations
Facilities where Israel Alter, 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.
Capital Womens Care LLC
Bethesda, 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).
Brand vs generic prescribing mix · Typical
Israel Alter, MD - brand share 16.0%
Obstetrics & Gynecology Physician average
16% brand-name claims vs 84% generic, on 160 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.
160
Total Claims
$18K
Total Drug Cost
45
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 345
- Total Day Supply
- 9,309
- Brand vs Generic
- 16% brand / 84% generic
- Brand Drug Cost
- $6K
- Generic Drug Cost
- $11K
- Antibiotic Claims
- 16
Patient Demographics
- Average Patient Age
- 71.5 years
- Avg HCC Risk Score
- 0.66
- Gender Split
- 100% female / 0% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Israel Alter, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Estradiol
Estradiol
50 claims
- Valacyclovir 15
Valacyclovir
15 claims
- Fluconazole 14
Fluconazole
14 claims
- Nitrofurantoin Mon… 11
Nitrofurantoin Mono-Macro
11 claims
- Yuvafem 11
Yuvafem
11 claims
| Drug | Claims |
|---|---|
| Estradiol | 50 |
| Valacyclovir Valacyclovir Hcl | 15 |
| Fluconazole | 14 |
| Nitrofurantoin Mono-Macro Nitrofurantoin Monohyd/M-Cryst | 11 |
| Yuvafem Estradiol | 11 |
| Prempro "Estrogen | N/A |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Obstetrics & Gynecology Physician Overview
How Israel Alter, MD fits within the Obstetrics & Gynecology Physician landscape nationally.
44,313
Obstetrics & Gynecology Physician Providers in US
56
States with Obstetrics & Gynecology Physician
179
Avg Claims per Provider
Israel Alter, MD's 160 claims are below the specialty average of 179.
Nearby Obstetrics & Gynecology Physician Providers in Maryland
Other clinicians with the same primary specialty enrolled in Maryland, drawn from the same CMS NPPES roster as Alter.
Fouad Abbas
Baltimore, MD
Dr. Alexandra Abbate
MD
Baltimore, MD
Dr. Basma Abdo
M.D
Baltimore, MD
Dr. Tolani Abdulkadir
MD
Baltimore, MD
Dr. Sozdar Abed
MD
Easton, MD
Compare Obstetrics & Gynecology 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 Maryland medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Obstetrics & Gynecology 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 Israel Alter, MD's specialty? ▼
Israel Alter, MD specializes in Obstetrics & Gynecology Physician and practices in Bethesda, Maryland. Credentials: MD.
How much does Israel Alter, MD prescribe under Medicare Part D? ▼
In 2023, Israel Alter, MD wrote 160 Medicare Part D claims totaling $18K in drug costs for 45 beneficiaries.
What is Israel Alter, MD's Medicare quality score? ▼
Israel Alter, MD has a CMS MIPS Final Score of 52.2/100 (Quality: 14.3, Cost: 53.7). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Israel Alter, MD located? ▼
Israel Alter, MD is located at 10215 FERNWOOD RD, Bethesda, MD, 20817. Phone: (301) 530-2235.
What is Israel Alter, MD's NPI number? ▼
Israel Alter, MD's National Provider Identifier (NPI) is 1912998790, issued on 11/02/2005.
Does Israel Alter, MD prescribe more brand-name or generic drugs? ▼
Israel Alter, MD's prescribing is 16% brand-name and 84% generic drugs by claim count, with $6K in brand drug costs.
How many Obstetrics & Gynecology Physician providers are there in the US? ▼
There are 44,313 Obstetrics & Gynecology Physician providers across 56 states in the US. The average Obstetrics & Gynecology Physician provider writes 179 Medicare Part D claims per year.
What drugs does Israel Alter, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Israel Alter, MD's most frequently prescribed drugs include Estradiol, Valacyclovir, Fluconazole. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Israel Alter, MD accept Medicare? ▼
Israel Alter, MD appears in CMS Medicare data with 160 Part D claims and 45 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Israel Alter, MD's credentials? ▼
Israel Alter, MD's NPI is 1912998790 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.