2026 NPPES data Obstetrics & Gynecology Physician NPI 1104871300 M.D.
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ROBERT DEIN, M.D.

Obstetrics & Gynecology Physician in ROSEMONT, Pennsylvania. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
520
Medicare Part D claims · 155 beneficiaries · Obstetrics & Gynecology Physician avg: 179
Industry payments
$594.19
25 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

ROBERT DEIN, M.D. filed 520 Medicare Part D claims in 2023 as a Obstetrics & Gynecology Physician in ROSEMONT, Pennsylvania.

520
Part D claims, 2023
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.

ROBERT DEIN, M.D.'s Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

520 Top 34% higher than 66% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). This entry sits in this band. 600–800: 56,224 prescribers (4%). Above this entry. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

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.

Source CMS Medicare Part D Prescriber Public Use File · 2023

Board certification likely (heuristic — not verified)

ROBERT DEIN, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 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 ROBERT DEIN, M.D.?

Quality data not reported

NPI registry status

Active

Issued 05/24/2006

NPI 1104871300

Primary specialty

Obstetrics & Gynecology Physician

Mid-sized

44,313 US NPIs in this specialty

Medicare Part D claims

520 191% vs specialty avg

2023 prescription claims

Specialty avg: 179

Specialty distribution in Pennsylvania

How Obstetrics & Gynecology Physician compares to other specialties among Pennsylvania providers

Pennsylvania providers

Obstetrics & Gynecology Physician share within Pennsylvania

1. Obstetrics & Gynecology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Obstetrics & Gynecology Physician share within Pennsylvania

Specialty board-certification context

Estimated specialty board-certified rate — Obstetrics & Gynecology Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Obstetrics & Gynecology Physician ABMS/AOA estimate

Est. board-certified rate (Obstetrics & Gynecology Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Obstetrics & Gynecology Physician) — ABMS / AOA estimate

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).

ROBERT DEIN, M.D. appears in the CMS NPPES registry as a Obstetrics & Gynecology Physician provider holding M.D. credentials at 1030 E LANCASTER AVE, ROSEMONT, PA, 19010, with a listed phone of (610) 525-3225. NPI 1104871300 was issued on 05/24/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what DEIN most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 520 prescription claims written by this provider, covering 155 Medicare beneficiaries and totaling roughly $94K in drug spend. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

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

1030 E LANCASTER AVE
ROSEMONT, PA 19010

Provider Details

NPI 1104871300
Specialty Obstetrics & Gynecology Physician
Credentials M.D.
Gender Male
NPI Issued 05/24/2006

Hospital and facility affiliations

Facilities where ROBERT DEIN, M.D. 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.

REGIONAL WOMENS HEALTH GROUP LLC
BRYN MAWR, PA

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 ROBERT DEIN, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$594

Largest payer

Astellas Pharma US 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 ROBERT DEIN, M.D.. To verify ROBERT DEIN, M.D.'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 2023.

520
Total Claims
$94K
Total Drug Cost
155
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,276
Total Day Supply
36,554
Generic Drug Cost
$40K
Antibiotic Claims
21

Patient Demographics

Average Patient Age
73.3 years
Avg HCC Risk Score
0.69
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 ROBERT DEIN, M.D. prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Estradiol
155
Raloxifene Hcl
69
Yuvafem
Estradiol
30
Clotrimazole-Betamethasone
Clotrimazole/Betamethasone Dip
17
Fluconazole
16
Valacyclovir
Valacyclovir Hcl
16
Clobetasol Propionate
13
Risedronate Sodium Dr
Risedronate Sodium
13
Estradiol (Twice Weekly)
Estradiol
12
Premarin
"Estrogens
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 ROBERT DEIN, M.D. 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

ROBERT DEIN, M.D.'s 520 claims are above the specialty average of 179.

Nearby Obstetrics & Gynecology Physician Providers in Pennsylvania

Other clinicians with the same primary specialty enrolled in Pennsylvania, drawn from the same CMS NPPES roster as DEIN.

Compare Obstetrics & Gynecology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is ROBERT DEIN, M.D.'s specialty?
ROBERT DEIN, M.D. specializes in Obstetrics & Gynecology Physician and practices in ROSEMONT, Pennsylvania. Credentials: M.D..
How much does ROBERT DEIN, M.D. prescribe under Medicare Part D?
In 2023, ROBERT DEIN, M.D. wrote 520 Medicare Part D claims totaling $94K in drug costs for 155 beneficiaries.
Where is ROBERT DEIN, M.D. located?
ROBERT DEIN, M.D. is located at 1030 E LANCASTER AVE, ROSEMONT, PA, 19010. Phone: (610) 525-3225.
What is ROBERT DEIN, M.D.'s NPI number?
ROBERT DEIN, M.D.'s National Provider Identifier (NPI) is 1104871300, issued on 05/24/2006.
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 ROBERT DEIN, M.D. prescribe most often?
Based on 2023 Medicare Part D data, ROBERT DEIN, M.D.'s most frequently prescribed drugs include Estradiol, Raloxifene Hcl, Yuvafem. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ROBERT DEIN, M.D. accept Medicare?
ROBERT DEIN, M.D. appears in CMS Medicare data with 520 Part D claims and 155 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ROBERT DEIN, M.D.'s credentials?
ROBERT DEIN, M.D.'s NPI is 1104871300 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

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