2026 NPPES data Allergy & Immunology Physician NPI 1326048240 MD
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MELVYN RANISH, MD

Allergy & Immunology Physician in WATERBURY, Connecticut. 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
345
Medicare Part D claims · 81 beneficiaries · Allergy & Immunology Physician avg: 764
Generic prescribing
59%
generic claims · 41% brand-name · higher generic rates reduce patient out-of-pocket costs
What the federal data reveals: MELVYN RANISH, MD is a Allergy & Immunology Physician ([object Object]) practicing in WATERBURY, Connecticut with a Medicare Part D prescribing footprint of 345 claims across 81 beneficiaries — 41% brand-name prescribing .

What stands out: MELVYN RANISH, MD filed 345 Medicare Part D claims in 2023 across WATERBURY, Connecticut. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board-eligible specialty (heuristic — not verified)

MELVYN RANISH, 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).

MELVYN RANISH, MD at a glance

Quality data not reported

NPI registry status

Active

Issued 07/21/2005

NPI 1326048240

Primary specialty

Allergy & Immunology Physician

Niche

3,390 US NPIs in this specialty

Medicare Part D claims

345 55% vs specialty avg

2023 prescription claims

Specialty avg: 764

Specialty distribution in Connecticut

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

Connecticut providers

Allergy & Immunology Physician share within Connecticut

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

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).

MELVYN RANISH, MD is a Allergy & Immunology Physician provider practicing in WATERBURY, Connecticut, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1326048240. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

MELVYN RANISH, MD appears in the CMS NPPES registry as a Allergy & Immunology Physician provider holding MD credentials at 475 CHASE PKWY, WATERBURY, CT, 06708, with a listed phone of (203) 755-8715. NPI 1326048240 was issued on 07/21/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what RANISH 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 345 prescription claims written by this provider, covering 81 Medicare beneficiaries and totaling roughly $59K in drug spend, split 41% brand-name and 59% 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

475 CHASE PKWY
WATERBURY, CT 06708

Provider Details

NPI 1326048240
Specialty Allergy & Immunology Physician
Credentials MD
Gender Male
NPI Issued 07/21/2005

Brand vs generic prescribing mix · Above average

MELVYN RANISH, MD — brand share 41.0%
Specialty average (est.)

41% brand-name claims vs 59% generic, on 345 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.

345
Total Claims
$59K
Total Drug Cost
81
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
592
Total Day Supply
17,048
Brand vs Generic
41% brand / 59% generic
Brand Drug Cost
$51K
Generic Drug Cost
$8K

Patient Demographics

Average Patient Age
71.1 years
Avg HCC Risk Score
1.15
Gender Split
67% female / 33% male

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

Drug Claims
Albuterol Sulfate Hfa
Albuterol Sulfate
62
Levocetirizine Dihydrochloride
47
Montelukast Sodium
44
Fluticasone Propionate
30
Symbicort
Budesonide/Formoterol Fumarate
19
Ventolin Hfa
Albuterol Sulfate
12

* 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 MELVYN RANISH, 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

MELVYN RANISH, MD's 345 claims are below the specialty average of 764.

Nearby Allergy & Immunology Physician Providers in Connecticut

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

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

Frequently Asked Questions

What is MELVYN RANISH, MD's specialty?
MELVYN RANISH, MD specializes in Allergy & Immunology Physician and practices in WATERBURY, Connecticut. Credentials: MD.
How much does MELVYN RANISH, MD prescribe under Medicare Part D?
In 2023, MELVYN RANISH, MD wrote 345 Medicare Part D claims totaling $59K in drug costs for 81 beneficiaries.
Where is MELVYN RANISH, MD located?
MELVYN RANISH, MD is located at 475 CHASE PKWY, WATERBURY, CT, 06708. Phone: (203) 755-8715.
What is MELVYN RANISH, MD's NPI number?
MELVYN RANISH, MD's National Provider Identifier (NPI) is 1326048240, issued on 07/21/2005.
Does MELVYN RANISH, MD prescribe more brand-name or generic drugs?
MELVYN RANISH, MD's prescribing is 41% brand-name and 59% generic drugs by claim count, with $51K 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 MELVYN RANISH, MD prescribe most often?
Based on 2023 Medicare Part D data, MELVYN RANISH, MD's most frequently prescribed drugs include Albuterol Sulfate Hfa, Levocetirizine Dihydrochloride, Montelukast Sodium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does MELVYN RANISH, MD accept Medicare?
MELVYN RANISH, MD appears in CMS Medicare data with 345 Part D claims and 81 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MELVYN RANISH, MD's credentials?
MELVYN RANISH, MD's NPI is 1326048240 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