2026 NPPES data Hospice and Palliative Medicine (Obstetrics & Gynecology) Physician NPI 1942424486 M.D.
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KANNAN SUNDAR, M.D.

Hospice and Palliative Medicine (Obstetrics & Gynecology) Physician in OAK LAWN, Illinois. 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
24
Medicare Part D claims · 12 beneficiaries · Hospice and Palliative Medicine (Obstetrics & Gynecology) Physician avg: 165
Generic prescribing
54%
generic claims · 46% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

KANNAN SUNDAR, M.D. filed 24 Medicare Part D claims in 2023 as a Hospice and Palliative Medicine (Obstetrics & Gynecology) Physician in OAK LAWN, Illinois, prescribing 54% generic.

24
Part D claims, 2023
54%
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.

KANNAN SUNDAR, M.D.'s Medicare Part D volume vs every U.S. prescriber

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

24 0th percentile higher than 0% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). This entry sits in this band. 200–400: 182,923 prescribers (13%). Above this entry. 400–600: 90,619 prescribers (7%). Above this entry. 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)

KANNAN SUNDAR, M.D. 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 KANNAN SUNDAR, M.D.?

Quality data not reported

NPI registry status

Active

Issued 04/13/2007

NPI 1942424486

Primary specialty

Hospice and Palliative Medicine (Obstetrics & Gynecology) Physician

Rare

92 US NPIs in this specialty

Medicare Part D claims

24 85% vs specialty avg

2023 prescription claims

Specialty avg: 165

Specialty distribution in Illinois

How Hospice and Palliative Medicine (Obstetrics & Gynecology) Physician compares to other specialties among Illinois providers

Illinois providers

Hospice and Palliative Medicine (Obstetrics & Gynecology) Physician share within Illinois

1. Hospice and Palliative Medicine (Obstetrics & Gynecology) Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Hospice and Palliative Medicine (Obstetrics & Gynecology) Physician share within Illinois

Specialty board-certification context

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

Quality data not reported
Est. board-certified rate
78%
Hospice and Palliative Medicine (Obstetrics & Gynecology) Physician ABMS/AOA estimate

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

0%100%78%
Est. board-certified rate (Hospice and Palliative Medicine (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).

KANNAN SUNDAR, M.D. appears in the CMS NPPES registry as a Hospice and Palliative Medicine (Obstetrics & Gynecology) Physician provider holding M.D. credentials at 4400 W 95TH ST STE 207, OAK LAWN, IL, 60453, with a listed phone of (708) 684-4637. NPI 1942424486 was issued on 04/13/2007. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what SUNDAR 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 24 prescription claims written by this provider, covering 12 Medicare beneficiaries and totaling roughly $2K in drug spend, split 46% brand-name and 54% 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.

Hospice and Palliative Medicine (Obstetrics & Gynecology) Physician is a narrow specialty nationwide, with 92 enrolled providers across 29 states and an average of 165 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

4400 W 95TH ST STE 207
OAK LAWN, IL 60453

Provider Details

NPI 1942424486
Specialty Hospice and Palliative Medicine (Obstetrics & Gynecology) Physician
Credentials M.D.
Gender Male
NPI Issued 04/13/2007

License & disciplinary context — Illinois IDFPR 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 ~42K Illinois medical licensees in 2023 — they are NOT specific to KANNAN SUNDAR, M.D.. To verify KANNAN SUNDAR, M.D.'s current license status, search the IDFPR public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

106
Total board actions, Illinois 2023
Across 103 cases
2.52
Actions per 1,000 licensees
Illinois statewide rate
probation
Most common action type
38 cases

IDFPR 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 Illinois disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Above average

KANNAN SUNDAR, M.D. — brand share 46.0%
Specialty average (est.)

46% brand-name claims vs 54% generic, on 24 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.

24
Total Claims
$2K
Total Drug Cost
12
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
26
Total Day Supply
479
Brand vs Generic
46% brand / 54% generic
Brand Drug Cost
$2K
Generic Drug Cost
$66

Patient Demographics

Average Patient Age
56.3 years
Avg HCC Risk Score
2.16
Gender Split
100% female / 0% male

Hospice and Palliative Medicine (Obstetrics & Gynecology) Physician Overview

How KANNAN SUNDAR, M.D. fits within the Hospice and Palliative Medicine (Obstetrics & Gynecology) Physician landscape nationally.

92
Hospice and Palliative Medicine (Obstetrics & Gynecology) Physician Providers in US
29
States with Hospice and Palliative Medicine (Obstetrics & Gynecology) Physician
165
Avg Claims per Provider

KANNAN SUNDAR, M.D.'s 24 claims are below the specialty average of 165.

Nearby Hospice and Palliative Medicine (Obstetrics & Gynecology) Physician Providers in Illinois

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

Compare Hospice and Palliative Medicine (Obstetrics & Gynecology) Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is KANNAN SUNDAR, M.D.'s specialty?
KANNAN SUNDAR, M.D. specializes in Hospice and Palliative Medicine (Obstetrics & Gynecology) Physician and practices in OAK LAWN, Illinois. Credentials: M.D..
How much does KANNAN SUNDAR, M.D. prescribe under Medicare Part D?
In 2023, KANNAN SUNDAR, M.D. wrote 24 Medicare Part D claims totaling $2K in drug costs for 12 beneficiaries.
Where is KANNAN SUNDAR, M.D. located?
KANNAN SUNDAR, M.D. is located at 4400 W 95TH ST STE 207, OAK LAWN, IL, 60453. Phone: (708) 684-4637.
What is KANNAN SUNDAR, M.D.'s NPI number?
KANNAN SUNDAR, M.D.'s National Provider Identifier (NPI) is 1942424486, issued on 04/13/2007.
Does KANNAN SUNDAR, M.D. prescribe more brand-name or generic drugs?
KANNAN SUNDAR, M.D.'s prescribing is 46% brand-name and 54% generic drugs by claim count, with $2K in brand drug costs.
How many Hospice and Palliative Medicine (Obstetrics & Gynecology) Physician providers are there in the US?
There are 92 Hospice and Palliative Medicine (Obstetrics & Gynecology) Physician providers across 29 states in the US. The average Hospice and Palliative Medicine (Obstetrics & Gynecology) Physician provider writes 165 Medicare Part D claims per year.
Does KANNAN SUNDAR, M.D. accept Medicare?
KANNAN SUNDAR, M.D. appears in CMS Medicare data with 24 Part D claims and 12 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify KANNAN SUNDAR, M.D.'s credentials?
KANNAN SUNDAR, M.D.'s NPI is 1942424486 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