2026 NPPES data Gastroenterology Physician NPI 1669440186 MD
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PREMNATH NARAHARI, MD

Gastroenterology Physician in LEBANON, 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
462
Medicare Part D claims · 183 beneficiaries · Gastroenterology Physician avg: 833
Generic prescribing
94%
generic claims · 6% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$80.17
1 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

PREMNATH NARAHARI, MD filed 462 Medicare Part D claims in 2023 as a Gastroenterology Physician in LEBANON, Pennsylvania, prescribing 94% generic.

462
Part D claims, 2023
94%
generic prescribing
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.

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

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

462 Top 38% higher than 62% 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)

PREMNATH NARAHARI, MD 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 PREMNATH NARAHARI, MD?

Quality data not reported

NPI registry status

Active

Issued 03/10/2006

NPI 1669440186

Primary specialty

Gastroenterology Physician

Mid-sized

16,567 US NPIs in this specialty

Medicare Part D claims

462 45% vs specialty avg

2023 prescription claims

Specialty avg: 833

Specialty distribution in Pennsylvania

How Gastroenterology Physician compares to other specialties among Pennsylvania providers

Pennsylvania providers

Gastroenterology Physician share within Pennsylvania

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

Specialty board-certification context

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

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

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

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

PREMNATH NARAHARI, MD appears in the CMS NPPES registry as a Gastroenterology Physician provider holding MD credentials at 954 ISABEL DR, LEBANON, PA, 17042, with a listed phone of (717) 376-1180. NPI 1669440186 was issued on 03/10/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what NARAHARI 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 462 prescription claims written by this provider, covering 183 Medicare beneficiaries and totaling roughly $89K in drug spend, split 6% brand-name and 94% 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.

Gastroenterology Physician is a mid-sized specialty nationwide, with 16,567 enrolled providers across 54 states and an average of 833 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

954 ISABEL DR
LEBANON, PA 17042

Provider Details

NPI 1669440186
Specialty Gastroenterology Physician
Credentials MD
Gender Male
NPI Issued 03/10/2006

Hospital and facility affiliations

Facilities where PREMNATH NARAHARI, MD 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.

WELLSPAN MEDICAL GROUP
LEBANON, PA

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 PREMNATH NARAHARI, MD. Source: openpaymentsdata.cms.gov.

Total received

$80

Largest payer

Intra-Sana Laboratories

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.

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 PREMNATH NARAHARI, MD. To verify PREMNATH NARAHARI, 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 · Generic-heavy

PREMNATH NARAHARI, MD — brand share 6.0%
Specialty average (est.)

6% brand-name claims vs 94% generic, on 462 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.

462
Total Claims
$89K
Total Drug Cost
183
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
641
Total Day Supply
15,849
Brand vs Generic
6% brand / 94% generic
Brand Drug Cost
$70K
Generic Drug Cost
$18K
Antibiotic Claims
21

Patient Demographics

Average Patient Age
68.8 years
Avg HCC Risk Score
1.28
Gender Split
59% female / 41% male
Age Distribution
<65: 36, 65-74: 108, 75-84: N/A, 85+: N/A

Top Prescribed Drugs (Medicare Part D)

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

What PREMNATH NARAHARI, 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
Pantoprazole Sodium
127
Peg 3350-Electrolyte
Sodium Chloride/Nahco3/Kcl/Peg
48
Omeprazole
40
Ondansetron Hcl
29
Dicyclomine Hcl
28
Famotidine
23
Cholestyramine
Cholestyramine (With Sugar)
20
Amitriptyline Hcl
14
Gavilyte-C
"Peg3350/Sod Sulf
N/A
Gavilyte-G
"Peg3350/Sod Sulf
N/A

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

Gastroenterology Physician Overview

How PREMNATH NARAHARI, MD fits within the Gastroenterology Physician landscape nationally.

16,567
Gastroenterology Physician Providers in US
54
States with Gastroenterology Physician
833
Avg Claims per Provider

PREMNATH NARAHARI, MD's 462 claims are below the specialty average of 833.

Nearby Gastroenterology Physician Providers in Pennsylvania

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

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

Frequently Asked Questions

What is PREMNATH NARAHARI, MD's specialty?
PREMNATH NARAHARI, MD specializes in Gastroenterology Physician and practices in LEBANON, Pennsylvania. Credentials: MD.
How much does PREMNATH NARAHARI, MD prescribe under Medicare Part D?
In 2023, PREMNATH NARAHARI, MD wrote 462 Medicare Part D claims totaling $89K in drug costs for 183 beneficiaries.
Where is PREMNATH NARAHARI, MD located?
PREMNATH NARAHARI, MD is located at 954 ISABEL DR, LEBANON, PA, 17042. Phone: (717) 376-1180.
What is PREMNATH NARAHARI, MD's NPI number?
PREMNATH NARAHARI, MD's National Provider Identifier (NPI) is 1669440186, issued on 03/10/2006.
Does PREMNATH NARAHARI, MD prescribe more brand-name or generic drugs?
PREMNATH NARAHARI, MD's prescribing is 6% brand-name and 94% generic drugs by claim count, with $70K in brand drug costs.
How many Gastroenterology Physician providers are there in the US?
There are 16,567 Gastroenterology Physician providers across 54 states in the US. The average Gastroenterology Physician provider writes 833 Medicare Part D claims per year.
What drugs does PREMNATH NARAHARI, MD prescribe most often?
Based on 2023 Medicare Part D data, PREMNATH NARAHARI, MD's most frequently prescribed drugs include Pantoprazole Sodium, Peg 3350-Electrolyte, Omeprazole. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does PREMNATH NARAHARI, MD accept Medicare?
PREMNATH NARAHARI, MD appears in CMS Medicare data with 462 Part D claims and 183 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify PREMNATH NARAHARI, MD's credentials?
PREMNATH NARAHARI, MD's NPI is 1669440186 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