2026 NPPES data Hospitalist Physician NPI 1225235336 M.D.
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SYLVANA ATALLAH, M.D.

Hospitalist Physician in SOUTH BEND, Indiana. 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
8K
Medicare Part D claims · 268 beneficiaries · Hospitalist Physician avg: 888
Generic prescribing
88%
generic claims · 12% brand-name · higher generic rates reduce patient out-of-pocket costs
What the federal data reveals: SYLVANA ATALLAH, M.D. is a Hospitalist Physician ([object Object]) practicing in SOUTH BEND, Indiana with a Medicare Part D prescribing footprint of 8K claims across 268 beneficiaries — 12% brand-name prescribing .

What stands out: SYLVANA ATALLAH, M.D. filed 8,431 Medicare Part D claims in 2023 across SOUTH BEND, Indiana. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board-eligible specialty (heuristic — not verified)

SYLVANA ATALLAH, 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).

SYLVANA ATALLAH, M.D. at a glance

Quality data not reported

NPI registry status

Active

Issued 07/02/2007

NPI 1225235336

Primary specialty

Hospitalist Physician

Mid-sized

16,825 US NPIs in this specialty

Medicare Part D claims

8,431 849% vs specialty avg

2023 prescription claims

Specialty avg: 888

Specialty distribution in Indiana

How Hospitalist Physician compares to other specialties among Indiana providers

Indiana providers

Hospitalist Physician share within Indiana

1. Hospitalist Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Hospitalist Physician share within Indiana

Specialty board-certification context

Estimated specialty board-certified rate — Hospitalist Physician (ABMS / AOA reference)

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

Est. board-certified rate (Hospitalist Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Hospitalist 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).

SYLVANA ATALLAH, M.D. is a Hospitalist Physician provider practicing in SOUTH BEND, Indiana, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1225235336. 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.

SYLVANA ATALLAH, M.D. appears in the CMS NPPES registry as a Hospitalist Physician provider holding M.D. credentials at 328 N MICHIGAN ST STE F3, SOUTH BEND, IN, 46601, with a listed phone of (262) 527-7410. NPI 1225235336 was issued on 07/02/2007. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what ATALLAH 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 8,431 prescription claims written by this provider, covering 268 Medicare beneficiaries and totaling roughly $543K in drug spend, split 12% brand-name and 88% generic by claim count, with an opioid prescribing rate of 3.9%. 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.

Hospitalist Physician is a mid-sized specialty nationwide, with 16,825 enrolled providers across 54 states and an average of 888 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

328 N MICHIGAN ST STE F3
SOUTH BEND, IN 46601

Provider Details

NPI 1225235336
Specialty Hospitalist Physician
Credentials M.D.
Gender Female
NPI Issued 07/02/2007

Brand vs generic prescribing mix · Typical

SYLVANA ATALLAH, M.D. — brand share 12.0%
Specialty average (est.)

12% brand-name claims vs 88% generic, on 8,431 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.

8,431
Total Claims
$543K
Total Drug Cost
268
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
8,790
Total Day Supply
209,952
Brand vs Generic
12% brand / 88% generic
Brand Drug Cost
$394K
Generic Drug Cost
$143K
Opioid Claims
330 (3.9% rate)
Antibiotic Claims
213

Patient Demographics

Average Patient Age
81.9 years
Avg HCC Risk Score
2.11
Gender Split
65% female / 35% male
Age Distribution
<65: 22, 65-74: 38, 75-84: 82, 85+: 126

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Amlodipine Besylate
323
Furosemide
312
Levothyroxine Sodium
310
Trazodone Hcl
293
Memantine Hcl
261
Atorvastatin Calcium
234
Sertraline Hcl
227
Gabapentin
183
Tamsulosin Hcl
175
Pantoprazole Sodium
169

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

Hospitalist Physician Overview

How SYLVANA ATALLAH, M.D. fits within the Hospitalist Physician landscape nationally.

16,825
Hospitalist Physician Providers in US
54
States with Hospitalist Physician
888
Avg Claims per Provider

SYLVANA ATALLAH, M.D.'s 8,431 claims are above the specialty average of 888.

Nearby Hospitalist Physician Providers in Indiana

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

Compare Hospitalist Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is SYLVANA ATALLAH, M.D.'s specialty?
SYLVANA ATALLAH, M.D. specializes in Hospitalist Physician and practices in SOUTH BEND, Indiana. Credentials: M.D..
How much does SYLVANA ATALLAH, M.D. prescribe under Medicare Part D?
In 2023, SYLVANA ATALLAH, M.D. wrote 8,431 Medicare Part D claims totaling $543K in drug costs for 268 beneficiaries.
Where is SYLVANA ATALLAH, M.D. located?
SYLVANA ATALLAH, M.D. is located at 328 N MICHIGAN ST STE F3, SOUTH BEND, IN, 46601. Phone: (262) 527-7410.
What is SYLVANA ATALLAH, M.D.'s NPI number?
SYLVANA ATALLAH, M.D.'s National Provider Identifier (NPI) is 1225235336, issued on 07/02/2007.
Does SYLVANA ATALLAH, M.D. prescribe more brand-name or generic drugs?
SYLVANA ATALLAH, M.D.'s prescribing is 12% brand-name and 88% generic drugs by claim count, with $394K in brand drug costs.
Does SYLVANA ATALLAH, M.D. prescribe opioids?
Yes, SYLVANA ATALLAH, M.D. had 330 opioid claims in 2023 with an opioid prescribing rate of 3.9%.
How many Hospitalist Physician providers are there in the US?
There are 16,825 Hospitalist Physician providers across 54 states in the US. The average Hospitalist Physician provider writes 888 Medicare Part D claims per year.
What drugs does SYLVANA ATALLAH, M.D. prescribe most often?
Based on 2023 Medicare Part D data, SYLVANA ATALLAH, M.D.'s most frequently prescribed drugs include Amlodipine Besylate, Furosemide, Levothyroxine Sodium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does SYLVANA ATALLAH, M.D. accept Medicare?
SYLVANA ATALLAH, M.D. appears in CMS Medicare data with 8,431 Part D claims and 268 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify SYLVANA ATALLAH, M.D.'s credentials?
SYLVANA ATALLAH, M.D.'s NPI is 1225235336 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