2026 NPPES data Allergy & Immunology Physician NPI 1205836640 MD
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ROBERT GORBY, MD

Allergy & Immunology Physician in GREENSBURG, 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
566
Medicare Part D claims · 126 beneficiaries · Allergy & Immunology Physician avg: 764
Generic prescribing
62%
generic claims · 38% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

ROBERT GORBY, MD filed 566 Medicare Part D claims in 2023 as a Allergy & Immunology Physician in GREENSBURG, Pennsylvania, prescribing 62% generic.

566
Part D claims, 2023
62%
generic prescribing

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 GORBY, MD's Medicare Part D volume vs every U.S. prescriber

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

566 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-eligible specialty (heuristic — not verified)

ROBERT GORBY, 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 ROBERT GORBY, MD?

Quality data not reported

NPI registry status

Active

Issued 07/28/2005

NPI 1205836640

Primary specialty

Allergy & Immunology Physician

Niche

3,390 US NPIs in this specialty

Medicare Part D claims

566 26% vs specialty avg

2023 prescription claims

Specialty avg: 764

Specialty distribution in Pennsylvania

How Allergy & Immunology Physician compares to other specialties among Pennsylvania providers

Pennsylvania providers

Allergy & Immunology Physician share within Pennsylvania

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

Specialty board-certification context

Estimated specialty board-certified rate — Allergy & Immunology Physician (ABMS / AOA reference)

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

Est. board-certified rate (Allergy & Immunology Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Allergy & Immunology 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 GORBY, MD appears in the CMS NPPES registry as a Allergy & Immunology Physician provider holding MD credentials at 530 SOUTH ST, GREENSBURG, PA, 15601, with a listed phone of (724) 832-1200. NPI 1205836640 was issued on 07/28/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what GORBY 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 566 prescription claims written by this provider, covering 126 Medicare beneficiaries and totaling roughly $221K in drug spend, split 38% brand-name and 62% generic by claim count. 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.

Allergy & Immunology Physician is a narrow specialty nationwide, with 3,390 enrolled providers across 52 states and an average of 764 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

530 SOUTH ST
GREENSBURG, PA 15601

Provider Details

NPI 1205836640
Specialty Allergy & Immunology Physician
Credentials MD
Gender Male
NPI Issued 07/28/2005

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 GORBY, MD. To verify ROBERT GORBY, 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.

Brand vs generic prescribing mix · Above average

ROBERT GORBY, MD — brand share 38.0%
Specialty average (est.)

38% brand-name claims vs 62% generic, on 566 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.

566
Total Claims
$221K
Total Drug Cost
126
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
679
Total Day Supply
18,339
Brand vs Generic
38% brand / 62% generic
Brand Drug Cost
$213K
Generic Drug Cost
$8K
Antibiotic Claims
33

Patient Demographics

Average Patient Age
69.5 years
Avg HCC Risk Score
0.94
Gender Split
71% female / 29% 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 GORBY, MD 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
Fluticasone Propionate
144
Breo Ellipta
Fluticasone/Vilanterol
39
Xolair
Omalizumab
37
Albuterol Sulfate Hfa
Albuterol Sulfate
34
Montelukast Sodium
34
Prednisone
24
Ipratropium Bromide
21
Cefuroxime
Cefuroxime Axetil
19
Fluticasone-Salmeterol
Fluticasone Propion/Salmeterol
19
Azelastine Hcl
17

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Allergy & Immunology Physician Overview

How ROBERT GORBY, MD fits within the Allergy & Immunology Physician landscape nationally.

3,390
Allergy & Immunology Physician Providers in US
52
States with Allergy & Immunology Physician
764
Avg Claims per Provider

ROBERT GORBY, MD's 566 claims are below the specialty average of 764.

Nearby Allergy & Immunology Physician Providers in Pennsylvania

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

Compare Allergy & Immunology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is ROBERT GORBY, MD's specialty?
ROBERT GORBY, MD specializes in Allergy & Immunology Physician and practices in GREENSBURG, Pennsylvania. Credentials: MD.
How much does ROBERT GORBY, MD prescribe under Medicare Part D?
In 2023, ROBERT GORBY, MD wrote 566 Medicare Part D claims totaling $221K in drug costs for 126 beneficiaries.
Where is ROBERT GORBY, MD located?
ROBERT GORBY, MD is located at 530 SOUTH ST, GREENSBURG, PA, 15601. Phone: (724) 832-1200.
What is ROBERT GORBY, MD's NPI number?
ROBERT GORBY, MD's National Provider Identifier (NPI) is 1205836640, issued on 07/28/2005.
Does ROBERT GORBY, MD prescribe more brand-name or generic drugs?
ROBERT GORBY, MD's prescribing is 38% brand-name and 62% generic drugs by claim count, with $213K in brand drug costs.
How many Allergy & Immunology Physician providers are there in the US?
There are 3,390 Allergy & Immunology Physician providers across 52 states in the US. The average Allergy & Immunology Physician provider writes 764 Medicare Part D claims per year.
What drugs does ROBERT GORBY, MD prescribe most often?
Based on 2023 Medicare Part D data, ROBERT GORBY, MD's most frequently prescribed drugs include Fluticasone Propionate, Breo Ellipta, Xolair. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ROBERT GORBY, MD accept Medicare?
ROBERT GORBY, MD appears in CMS Medicare data with 566 Part D claims and 126 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ROBERT GORBY, MD's credentials?
ROBERT GORBY, MD's NPI is 1205836640 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

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