2026 NPPES data Internal Medicine Physician NPI 1881081412 MD
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Rajiv Narula, MD

Internal Medicine Physician in Tulsa, Oklahoma.

This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 172,858 in Internal Medicine Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.

Federal data, no proprietary rating. We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
567
Medicare Part D claims · 140 beneficiaries · Internal Medicine Physician avg: 3K
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Rajiv Narula, MD filed 567 Medicare Part D claims in 2023 as a Internal Medicine Physician in Tulsa, Oklahoma.

567
Part D claims, 2023

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.

Rajiv Narula, MD's Medicare Part D volume vs every U.S. prescriber

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

567 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. 2K+: 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)

Rajiv Narula, 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).

What does the federal data show about Rajiv Narula, MD?

Quality data not reported

NPI registry status

Active

Issued 04/21/2015

NPI 1881081412

Primary specialty

Internal Medicine Physician

High-volume

172,858 US NPIs in this specialty

Medicare Part D claims

567 79% vs specialty avg

2023 prescription claims

Specialty avg: 2,716

Specialty distribution in Oklahoma

How Internal Medicine Physician compares to other specialties among Oklahoma providers

Oklahoma providers
Case Manager/Care Coordinator - 9.7%Case Manager/Care Coordinator9.7%Mental Health Counselor - 7.2%Mental Health Counselor7.2%Behavior Technician - 6.2%Behavior Technician6.2%Peer Specialist - 5.5%Peer Specialist5.5%Counselor - 5%Counselor5%Student in an Organized Health Care Education/Training Program - 4.2%Student in an Organized Health Care Education/Training Program4.2%Internal Medicine Physician - 1.5%Internal Medicine Physician1.5%
Largest specialties in Oklahoma (% of in-state providers)

Board certification

Not published by CMS

CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Internal Medicine Physician. Verify directly:

How MIPS and board certification work

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).

Rajiv Narula, MD appears in the CMS NPPES registry as a Internal Medicine Physician provider holding MD credentials at 1923 S UTICA AVE, Tulsa, OK, 74104, with a listed phone of (318) 813-2528. NPI 1881081412 was issued on 04/21/2015.

Medicare Part D records for calendar year 2023 show 567 prescription claims written by this provider, covering 140 Medicare beneficiaries and totaling roughly $45K in drug spend, with an opioid prescribing rate of 3.0%.

Internal Medicine Physician is a high-volume specialty nationwide, with 172,858 enrolled providers across 56 states and an average of 2,716 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

1923 S UTICA AVE
Tulsa, OK 74104

Provider Details

NPI 1881081412
Specialty Internal Medicine Physician
Credentials MD
Gender Male
NPI Issued 04/21/2015

Medicare Part D Prescribing Data

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

567
Total Claims
$45K
Total Drug Cost
140
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
632
Total Day Supply
16,293
Generic Drug Cost
$8K
Opioid Claims
17 (3.0% rate)
Antibiotic Claims
55

Patient Demographics

Average Patient Age
70.5 years
Avg HCC Risk Score
2.88
Gender Split
50% female / 50% male
Age Distribution
<65: 34, 65-74: 51, 75-84: 32, 85+: 23

Top Prescribed Drugs (Medicare Part D)

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

What Rajiv Narula, 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
32
Atorvastatin Calcium
25
Amlodipine Besylate
19
Furosemide
18
Albuterol Sulfate Hfa
Albuterol Sulfate
17
Eliquis
Apixaban
17
Tamsulosin Hcl
15
Metoprolol Succinate
13
Carvedilol
12
Gabapentin
12

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

Internal Medicine Physician Overview

How Rajiv Narula, MD fits within the Internal Medicine Physician landscape nationally.

172,858
Internal Medicine Physician Providers in US
56
States with Internal Medicine Physician
2,716
Avg Claims per Provider

Rajiv Narula, MD's 567 claims are below the specialty average of 2,716.

Nearby Internal Medicine Physician Providers in Oklahoma

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

Compare Internal Medicine Physician nationally: see state-by-state distribution →

Before you book an appointment

Use this federal record as your verification checklist, not as a recommendation.

  • Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
  • Check the active license and any disciplinary history with the Oklahoma medical board, federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby Internal Medicine Physician peer on Medicare volume and prescribing patterns. Compare providers

Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.

Frequently Asked Questions

What is Rajiv Narula, MD's specialty?
Rajiv Narula, MD specializes in Internal Medicine Physician and practices in Tulsa, Oklahoma. Credentials: MD.
How much does Rajiv Narula, MD prescribe under Medicare Part D?
In 2023, Rajiv Narula, MD wrote 567 Medicare Part D claims totaling $45K in drug costs for 140 beneficiaries.
Where is Rajiv Narula, MD located?
Rajiv Narula, MD is located at 1923 S UTICA AVE, Tulsa, OK, 74104. Phone: (318) 813-2528.
What is Rajiv Narula, MD's NPI number?
Rajiv Narula, MD's National Provider Identifier (NPI) is 1881081412, issued on 04/21/2015.
Does Rajiv Narula, MD prescribe opioids?
Yes, Rajiv Narula, MD had 17 opioid claims in 2023 with an opioid prescribing rate of 3.0%.
How many Internal Medicine Physician providers are there in the US?
There are 172,858 Internal Medicine Physician providers across 56 states in the US. The average Internal Medicine Physician provider writes 2,716 Medicare Part D claims per year.
What drugs does Rajiv Narula, MD prescribe most often?
Based on 2023 Medicare Part D data, Rajiv Narula, MD's most frequently prescribed drugs include Pantoprazole Sodium, Atorvastatin Calcium, Amlodipine Besylate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Rajiv Narula, MD accept Medicare?
Rajiv Narula, MD appears in CMS Medicare data with 567 Part D claims and 140 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Rajiv Narula, MD's credentials?
Rajiv Narula, MD's NPI is 1881081412 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

View source datasets and methodology notes
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

Compiled from official public sources by the PlainDoctor editorial team.