NPI registry status
Active
2026 NPPES data Gynecology Physician NPI 1639305873 M.D.
Verify on CMS → Ruth Weinberg, M.D.
Gynecology Physician in Boulder, 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 3,912 in 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
125
Medicare Part D claims · 45 beneficiaries · Gynecology Physician avg: 319
Generic prescribing
79%
generic claims · 21% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Ruth Weinberg, M.D. filed 125 Medicare Part D claims in 2024 as a Gynecology Physician in Boulder, Colorado, prescribing 79% generic.
- 125
- Part D claims, 2024
- 79%
- generic prescribing
- ≥34th
- 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 Ruth Weinberg, M.D.
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 1639305873), first enumerated 06/02/2009.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 125 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 1639305873 · Gynecology Physician
NPI-10 · ENUM-MID · TAX-NARROW · RX-LIGHT · BOOK-THIN · PHOTO-ENUM
- NPI-10 1639305873
- ENUM-MID 2009
- TAX-NARROW 3,912
- RX-LIGHT 125
- BOOK-THIN 69 in Colorado
- PHOTO-ENUM Susan Nitka, M.D. · 2009
Ruth Weinberg, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
125 ≥ 34th percentile 34% of 1,416,883 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 · 2024
◑
Board-eligible specialty (heuristic, not verified)
Ruth Weinberg, M.D. 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 Ruth Weinberg, M.D.?
Quality data not reportedPrimary specialty
Gynecology Physician
Medicare Part D claims
125 61% vs specialty avg
Specialty distribution in Colorado
How Gynecology Physician compares to other specialties among Colorado 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 Gynecology 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 | 1639305873 |
|---|---|
| Specialty | Gynecology Physician |
| Credentials | M.D. |
| Gender | Female |
| NPI Issued | 06/02/2009 |
Brand vs generic prescribing mix · Typical
Ruth Weinberg, M.D. - brand share 21.0%
Gynecology Physician average
21% brand-name claims vs 79% generic, on 125 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.
125
Total Claims
$18K
Total Drug Cost
45
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 278.867
- Total Day Supply
- 8,146
- Brand vs Generic
- 21% brand / 79% generic
- Brand Drug Cost
- $10K
- Generic Drug Cost
- $8K
Patient Demographics
- Average Patient Age
- 71.7 years
- Avg HCC Risk Score
- 0.63
- Gender Split
- 100% female / 0% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Ruth Weinberg, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2024
- Estradiol
Estradiol
43 claims
- Progesterone
Progesterone
21 claims
- Estradiol (Twice W…
Estradiol (Twice Weekly)
19 claims
- Premarin 11
Premarin
11 claims
| Drug | Claims |
|---|---|
| Estradiol | 43 |
| Progesterone Progesterone, Micronized | 21 |
| Estradiol (Twice Weekly) Estradiol | 19 |
| Premarin Estrogens, Conjugated | 11 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Gynecology Physician Overview
How Ruth Weinberg, M.D. fits within the Gynecology Physician landscape nationally.
3,912
Gynecology Physician Providers in US
53
States with Gynecology Physician
319
Avg Claims per Provider
Ruth Weinberg, M.D.'s 125 claims are below the specialty average of 319.
Nationwide Gynecology Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Weinberg, both outside Colorado so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2009)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Gynecology Physician Providers in Colorado
Other clinicians with the same primary specialty enrolled in Colorado, drawn from the same CMS NPPES roster as Weinberg.
One of 69 Gynecology Physician providers enrolled in Colorado, 5 are shown here.
Dr. Oscar Aguirre
M.D.
Parker, CO
Dr. Kevin Bachus
MD
Fort Collins, CO
Dr. Roland Baiza
MD
Colorado Springs, CO
Peggy Bakker
NP
Littleton, CO
Dr. Mandi Beman
M.D.
Denver, CO
Compare Gynecology Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Ruth Weinberg, M.D.'s specialty? ▼
Ruth Weinberg, M.D. specializes in Gynecology Physician and practices in Boulder, Colorado. Credentials: M.D..
How much does Ruth Weinberg, M.D. prescribe under Medicare Part D? ▼
In 2024, Ruth Weinberg, M.D. wrote 125 Medicare Part D claims totaling $18K in drug costs for 45 beneficiaries.
Where is Ruth Weinberg, M.D. located? ▼
Ruth Weinberg, M.D. is located at 2855 VALMONT RD, Boulder, CO, 80301. Phone: (303) 442-5160.
What is Ruth Weinberg, M.D.'s NPI number? ▼
Ruth Weinberg, M.D.'s National Provider Identifier (NPI) is 1639305873, issued on 06/02/2009.
Does Ruth Weinberg, M.D. prescribe more brand-name or generic drugs? ▼
Ruth Weinberg, M.D.'s prescribing is 21% brand-name and 79% generic drugs by claim count, with $10K in brand drug costs.
How many Gynecology Physician providers are there in the US? ▼
There are 3,912 Gynecology Physician providers across 53 states in the US. The average Gynecology Physician provider writes 319 Medicare Part D claims per year.
What drugs does Ruth Weinberg, M.D. prescribe most often? ▼
Based on 2024 Medicare Part D data, Ruth Weinberg, M.D.'s most frequently prescribed drugs include Estradiol, Progesterone, Estradiol (Twice Weekly). This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Ruth Weinberg, M.D. accept Medicare? ▼
Ruth Weinberg, M.D. appears in CMS Medicare data with 125 Part D claims and 45 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Ruth Weinberg, M.D.'s credentials? ▼
Ruth Weinberg, M.D.'s NPI is 1639305873 with credentials M.D.. 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.
- 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.