NPI registry status
Active
2026 NPPES data Reproductive Endocrinology Physician NPI 1356433528 MD
Verify on CMS → Marianne Ruby, MD
Reproductive Endocrinology Physician in Philadelphia, Pennsylvania.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 1,468 in Reproductive Endocrinology 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
388
Medicare Part D claims · 78 beneficiaries · Reproductive Endocrinology Physician avg: 118
Industry payments
$18.67
1 payments · CMS Open Payments (Sunshine Act)
What the federal data shows
Marianne Ruby, MD filed 388 Medicare Part D claims in 2024 as a Reproductive Endocrinology Physician in Philadelphia, Pennsylvania.
- 388
- Part D claims, 2024
- $18.67
- industry payments (Sunshine Act)
- ≥56th
- 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 Marianne Ruby, 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 1356433528), first enumerated 09/28/2006.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 388 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.
- Reported
Industry payment transparency
$18.67 in reported industry payments (1 transfers) in 2024 under the federal Sunshine Act — disclosed transfers of value, not a quality rating.
Source: CMS Open Payments
- State context
State board disciplinary context
Pennsylvania statewide board action statistics are published annually — these figures describe aggregate state activity, not Marianne Ruby, MD's individual license status. Verify directly with the state medical board.
Source: PA-BOM annual report 2023
- 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.
Compare Ruby with other Reproductive Endocrinology Physician providers
Same primary specialty, same federal CMS NPPES roster.
Also enrolled in Pennsylvania
- Dr. Judith Albert, MD Pittsburgh, PA
- Dr. Shannon Alexa Fishman, D.O Bryn Mawr, PA
- Dr. Emelia Bachman, MD Radnor, PA
- Dr. Larry Barmat, MD Abington, PA
- Dr. Kurt Barnhart, MD Philadelphia, PA
- Dr. Frances Batzer Baylson, M.D. Philadelphia, PA
Other specialties in Philadelphia: Student in an Organized Health Care Education/Training Program (5,177) · Internal Medicine Physician (2,259) · Pediatrics Physician (1,627) · Pharmacist (1,617)
CMS NPPES provider registry desk
NPI 1356433528 · Reproductive Endocrinology Physician
NPI-10 · ENUM-LEGACY · TAX-NARROW · RX-LIGHT · BOOK-THIN · PHOTO-ENUM
- NPI-10 1356433528
- ENUM-LEGACY 2006
- TAX-NARROW 1,468
- RX-LIGHT 388
- BOOK-THIN 62 in Pennsylvania
- PHOTO-ENUM Donna Shoupe, M.D. · 2006
Marianne Ruby, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
388 ≥ 56th percentile 56% 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)
Marianne Ruby, 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 Marianne Ruby, MD?
Quality data not reportedPrimary specialty
Reproductive Endocrinology Physician
Medicare Part D claims
388 229% vs specialty avg
Specialty distribution in Pennsylvania
How Reproductive Endocrinology Physician compares to other specialties among Pennsylvania 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 Reproductive Endocrinology 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 | 1356433528 |
|---|---|
| Specialty | Reproductive Endocrinology Physician |
| Credentials | MD |
| Gender | Female |
| NPI Issued | 09/28/2006 |
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 Marianne Ruby, MD. Source: openpaymentsdata.cms.gov.
Total received
$19
Largest payer
Sumitomo Pharma America, Inc.
Most common payment type
Food and Beverage
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.
License & disciplinary context - Pennsylvania PA-BOM 2023 annual report
Aggregate state board data only, NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~45K Pennsylvania medical licensees in 2023 - they are NOT specific to Marianne Ruby, MD. To verify Marianne Ruby, MD's current license status, search the PA-BOM public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
133
Total board actions, Pennsylvania 2023
Across 129 cases
2.96
Actions per 1,000 licensees
Pennsylvania statewide rate
probation
Most common action type
48 cases
PA-BOM publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Pennsylvania disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2024.
388
Total Claims
$50K
Total Drug Cost
78
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 947.067
- Total Day Supply
- 27,456
- Generic Drug Cost
- $16K
- Antibiotic Claims
- 16
Patient Demographics
- Average Patient Age
- 75.0 years
- Avg HCC Risk Score
- 0.87
- Age Distribution
- <65: 0, 65-74: 43, 75-84: N/A, 85+: N/A
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Marianne Ruby, MD prescribes most
Top Medicare Part D drugs by claim count, 2024
- Synthroid
Synthroid
84 claims
- Estradiol
Estradiol
50 claims
- Progesterone 27
Progesterone
27 claims
- Estradiol (Twice W… 24
Estradiol (Twice Weekly)
24 claims
- Raloxifene Hcl 17
Raloxifene Hcl
17 claims
- Liothyronine Sodium 12
Liothyronine Sodium
12 claims
| Drug | Claims |
|---|---|
| Synthroid Levothyroxine Sodium | 84 |
| Estradiol | 50 |
| Progesterone Progesterone, Micronized | 27 |
| Estradiol (Twice Weekly) Estradiol | 24 |
| Raloxifene Hcl | 17 |
| Liothyronine Sodium | 12 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Reproductive Endocrinology Physician in PA →
All providers in Pennsylvania →
Compare specialties →
Reproductive Endocrinology Physician Overview
How Marianne Ruby, MD fits within the Reproductive Endocrinology Physician landscape nationally.
1,468
Reproductive Endocrinology Physician Providers in US
47
States with Reproductive Endocrinology Physician
118
Avg Claims per Provider
Marianne Ruby, MD's 388 claims are above the specialty average of 118.
Nationwide Reproductive Endocrinology Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Ruby, both outside Pennsylvania 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 Reproductive Endocrinology Physician Providers in Pennsylvania
Other clinicians with the same primary specialty enrolled in Pennsylvania, drawn from the same CMS NPPES roster as Ruby.
One of 62 Reproductive Endocrinology Physician providers enrolled in Pennsylvania, 11 are shown on this page.
Richard Beigi
Pittsburgh, PA
Dr. Yudhishter Bhatnagar
M.D.
Brookville, PA
Dr. Michael Birnbaum
M.D.
Elkins Park, PA
Dr. Kassie Bollig
MD
Philadelphia, PA
Dr. Tara Budinetz
D.O.
Abington, PA
Compare Reproductive Endocrinology Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Marianne Ruby, MD's specialty? ▼
Marianne Ruby, MD specializes in Reproductive Endocrinology Physician and practices in Philadelphia, Pennsylvania. Credentials: MD.
How much does Marianne Ruby, MD prescribe under Medicare Part D? ▼
In 2024, Marianne Ruby, MD wrote 388 Medicare Part D claims totaling $50K in drug costs for 78 beneficiaries.
Where is Marianne Ruby, MD located? ▼
Marianne Ruby, MD is located at 1015 CHESTNUT ST STE 601, Philadelphia, PA, 19107. Phone: (215) 923-1112.
What is Marianne Ruby, MD's NPI number? ▼
Marianne Ruby, MD's National Provider Identifier (NPI) is 1356433528, issued on 09/28/2006.
How many Reproductive Endocrinology Physician providers are there in the US? ▼
There are 1,468 Reproductive Endocrinology Physician providers across 47 states in the US. The average Reproductive Endocrinology Physician provider writes 118 Medicare Part D claims per year.
What drugs does Marianne Ruby, MD prescribe most often? ▼
Based on 2024 Medicare Part D data, Marianne Ruby, MD's most frequently prescribed drugs include Synthroid, Estradiol, Progesterone. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Marianne Ruby, MD accept Medicare? ▼
Marianne Ruby, MD appears in CMS Medicare data with 388 Part D claims and 78 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Marianne Ruby, MD's credentials? ▼
Marianne Ruby, MD's NPI is 1356433528 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.
- 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.