2026 NPPES data Sleep Medicine (Family Medicine) Physician NPI 1508448549 MD
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CHRISTIAN NGUYEN, MD

Sleep Medicine (Family Medicine) Physician in TULSA, Oklahoma. 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
1K
Medicare Part D claims · 138 beneficiaries · Sleep Medicine (Family Medicine) Physician avg: 2K
Generic prescribing
84%
generic claims · 16% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

CHRISTIAN NGUYEN, MD filed 1,369 Medicare Part D claims in 2023 as a Sleep Medicine (Family Medicine) Physician in TULSA, Oklahoma, prescribing 84% generic.

1K
Part D claims, 2023
84%
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.

CHRISTIAN NGUYEN, MD's Medicare Part D volume vs every U.S. prescriber

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

1,369 Top 21% higher than 79% 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%). Below this entry. 600–800: 56,224 prescribers (4%). Below this entry. 800–1,000: 40,919 prescribers (3%). Below this entry. 1,000–1,200: 31,827 prescribers (2%). Below this entry. 1,200–1,400: 26,224 prescribers (2%). This entry sits in this band. 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)

CHRISTIAN NGUYEN, 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 CHRISTIAN NGUYEN, MD?

Quality data not reported

NPI registry status

Active

Issued 04/28/2021

NPI 1508448549

Primary specialty

Sleep Medicine (Family Medicine) Physician

Rare

190 US NPIs in this specialty

Medicare Part D claims

1,369 9% vs specialty avg

2023 prescription claims

Specialty avg: 1,506

Specialty distribution in Oklahoma

How Sleep Medicine (Family Medicine) Physician compares to other specialties among Oklahoma providers

Oklahoma providers

Sleep Medicine (Family Medicine) Physician share within Oklahoma

1. Sleep Medicine (Family Medicine) Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Sleep Medicine (Family Medicine) Physician share within Oklahoma

Specialty board-certification context

Estimated specialty board-certified rate — Sleep Medicine (Family Medicine) Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Sleep Medicine (Family Medicine) Physician ABMS/AOA estimate

Est. board-certified rate (Sleep Medicine (Family Medicine) Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Sleep Medicine (Family Medicine) 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).

CHRISTIAN NGUYEN, MD appears in the CMS NPPES registry as a Sleep Medicine (Family Medicine) Physician provider holding MD credentials at 8921 S MINGO RD, TULSA, OK, 74133, with a listed phone of (888) 397-8387. NPI 1508448549 was issued on 04/28/2021. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what NGUYEN 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 1,369 prescription claims written by this provider, covering 138 Medicare beneficiaries and totaling roughly $168K in drug spend, split 16% brand-name and 84% generic by claim count, with an opioid prescribing rate of 2.9%. 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.

Sleep Medicine (Family Medicine) Physician is a narrow specialty nationwide, with 190 enrolled providers across 45 states and an average of 1,506 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

8921 S MINGO RD
TULSA, OK 74133

Provider Details

NPI 1508448549
Specialty Sleep Medicine (Family Medicine) Physician
Credentials MD
Gender Male
NPI Issued 04/28/2021

Brand vs generic prescribing mix · Typical

CHRISTIAN NGUYEN, MD — brand share 16.0%
Specialty average (est.)

16% brand-name claims vs 84% generic, on 1,369 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.

1,369
Total Claims
$168K
Total Drug Cost
138
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
2,356
Total Day Supply
67,025
Brand vs Generic
16% brand / 84% generic
Brand Drug Cost
$144K
Generic Drug Cost
$23K
Opioid Claims
40 (2.9% rate)
Antibiotic Claims
29

Patient Demographics

Average Patient Age
64.1 years
Avg HCC Risk Score
1.68
Gender Split
58% female / 42% male
Age Distribution
<65: 69, 65-74: 43, 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 CHRISTIAN NGUYEN, 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
Gabapentin
127
Atorvastatin Calcium
78
Amlodipine Besylate
55
Metformin Hcl
49
Diclofenac Sodium
43
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
33
Losartan Potassium
33
Pantoprazole Sodium
32
Potassium Chloride
31
Farxiga
Dapagliflozin Propanediol
30

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

Sleep Medicine (Family Medicine) Physician Overview

How CHRISTIAN NGUYEN, MD fits within the Sleep Medicine (Family Medicine) Physician landscape nationally.

190
Sleep Medicine (Family Medicine) Physician Providers in US
45
States with Sleep Medicine (Family Medicine) Physician
1,506
Avg Claims per Provider

CHRISTIAN NGUYEN, MD's 1,369 claims are below the specialty average of 1,506.

Nearby Sleep Medicine (Family Medicine) Physician Providers in Oklahoma

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

Compare Sleep Medicine (Family Medicine) Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is CHRISTIAN NGUYEN, MD's specialty?
CHRISTIAN NGUYEN, MD specializes in Sleep Medicine (Family Medicine) Physician and practices in TULSA, Oklahoma. Credentials: MD.
How much does CHRISTIAN NGUYEN, MD prescribe under Medicare Part D?
In 2023, CHRISTIAN NGUYEN, MD wrote 1,369 Medicare Part D claims totaling $168K in drug costs for 138 beneficiaries.
Where is CHRISTIAN NGUYEN, MD located?
CHRISTIAN NGUYEN, MD is located at 8921 S MINGO RD, TULSA, OK, 74133. Phone: (888) 397-8387.
What is CHRISTIAN NGUYEN, MD's NPI number?
CHRISTIAN NGUYEN, MD's National Provider Identifier (NPI) is 1508448549, issued on 04/28/2021.
Does CHRISTIAN NGUYEN, MD prescribe more brand-name or generic drugs?
CHRISTIAN NGUYEN, MD's prescribing is 16% brand-name and 84% generic drugs by claim count, with $144K in brand drug costs.
Does CHRISTIAN NGUYEN, MD prescribe opioids?
Yes, CHRISTIAN NGUYEN, MD had 40 opioid claims in 2023 with an opioid prescribing rate of 2.9%.
How many Sleep Medicine (Family Medicine) Physician providers are there in the US?
There are 190 Sleep Medicine (Family Medicine) Physician providers across 45 states in the US. The average Sleep Medicine (Family Medicine) Physician provider writes 1,506 Medicare Part D claims per year.
What drugs does CHRISTIAN NGUYEN, MD prescribe most often?
Based on 2023 Medicare Part D data, CHRISTIAN NGUYEN, MD's most frequently prescribed drugs include Gabapentin, Atorvastatin Calcium, Amlodipine Besylate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does CHRISTIAN NGUYEN, MD accept Medicare?
CHRISTIAN NGUYEN, MD appears in CMS Medicare data with 1,369 Part D claims and 138 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify CHRISTIAN NGUYEN, MD's credentials?
CHRISTIAN NGUYEN, MD's NPI is 1508448549 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