2026 NPPES data Allergy & Immunology Physician NPI 1356310932 M.D.
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HYMAN KAPLAN, M.D.

Allergy & Immunology Physician in CHATTANOOGA, Tennessee. 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
587
Medicare Part D claims · 134 beneficiaries · Allergy & Immunology Physician avg: 764
Industry payments
$14.99
1 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

HYMAN KAPLAN, M.D. filed 587 Medicare Part D claims in 2023 as a Allergy & Immunology Physician in CHATTANOOGA, Tennessee.

587
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.

HYMAN KAPLAN, M.D.'s Medicare Part D volume vs every U.S. prescriber

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

587 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)

HYMAN KAPLAN, 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 HYMAN KAPLAN, M.D.?

Quality data not reported

NPI registry status

Active

Issued 03/16/2006

NPI 1356310932

Primary specialty

Allergy & Immunology Physician

Niche

3,390 US NPIs in this specialty

Medicare Part D claims

587 23% vs specialty avg

2023 prescription claims

Specialty avg: 764

Specialty distribution in Tennessee

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

Tennessee providers

Allergy & Immunology Physician share within Tennessee

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

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).

HYMAN KAPLAN, M.D. appears in the CMS NPPES registry as a Allergy & Immunology Physician provider holding M.D. credentials at 6734 LEE HWY, CHATTANOOGA, TN, 37421, with a listed phone of (423) 899-0431. NPI 1356310932 was issued on 03/16/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what KAPLAN 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 587 prescription claims written by this provider, covering 134 Medicare beneficiaries and totaling roughly $228K 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.

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

6734 LEE HWY
CHATTANOOGA, TN 37421

Provider Details

NPI 1356310932
Specialty Allergy & Immunology Physician
Credentials M.D.
Gender Male
NPI Issued 03/16/2006

Hospital and facility affiliations

Facilities where HYMAN KAPLAN, 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.

CHATTANOOGA ALLERGY CLINIC , PLLC
HIXSON, TN

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 HYMAN KAPLAN, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$15

Largest payer

AstraZeneca Pharmaceuticals LP

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.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

587
Total Claims
$228K
Total Drug Cost
134
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
916
Total Day Supply
25,683
Generic Drug Cost
$14K
Antibiotic Claims
26

Patient Demographics

Average Patient Age
71.0 years
Avg HCC Risk Score
1.09
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 HYMAN KAPLAN, 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
Montelukast Sodium
98
Albuterol Sulfate Hfa
Albuterol Sulfate
61
Fluticasone Propionate
53
Symbicort
Budesonide/Formoterol Fumarate
37
Azelastine Hcl
35
Fluticasone-Salmeterol
Fluticasone Propion/Salmeterol
24
Ipratropium Bromide
24
Trelegy Ellipta
Fluticasone/Umeclidin/Vilanter
24
Levocetirizine Dihydrochloride
23
Famotidine
21

* 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 HYMAN KAPLAN, M.D. 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

HYMAN KAPLAN, M.D.'s 587 claims are below the specialty average of 764.

Nearby Allergy & Immunology Physician Providers in Tennessee

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

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

Frequently Asked Questions

What is HYMAN KAPLAN, M.D.'s specialty?
HYMAN KAPLAN, M.D. specializes in Allergy & Immunology Physician and practices in CHATTANOOGA, Tennessee. Credentials: M.D..
How much does HYMAN KAPLAN, M.D. prescribe under Medicare Part D?
In 2023, HYMAN KAPLAN, M.D. wrote 587 Medicare Part D claims totaling $228K in drug costs for 134 beneficiaries.
Where is HYMAN KAPLAN, M.D. located?
HYMAN KAPLAN, M.D. is located at 6734 LEE HWY, CHATTANOOGA, TN, 37421. Phone: (423) 899-0431.
What is HYMAN KAPLAN, M.D.'s NPI number?
HYMAN KAPLAN, M.D.'s National Provider Identifier (NPI) is 1356310932, issued on 03/16/2006.
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 HYMAN KAPLAN, M.D. prescribe most often?
Based on 2023 Medicare Part D data, HYMAN KAPLAN, M.D.'s most frequently prescribed drugs include Montelukast Sodium, Albuterol Sulfate Hfa, Fluticasone Propionate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does HYMAN KAPLAN, M.D. accept Medicare?
HYMAN KAPLAN, M.D. appears in CMS Medicare data with 587 Part D claims and 134 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify HYMAN KAPLAN, M.D.'s credentials?
HYMAN KAPLAN, M.D.'s NPI is 1356310932 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