2026 NPPES data Addiction Medicine (Internal Medicine) Physician NPI 1184809030 M.D., PHD
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GERALD LEE, M.D., PHD

Addiction Medicine (Internal Medicine) Physician in MANASSAS, Virginia. 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
326
Medicare Part D claims · 32 beneficiaries · Addiction Medicine (Internal Medicine) Physician avg: 1K
Industry payments
$44.16
2 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

GERALD LEE, M.D., PHD filed 326 Medicare Part D claims in 2023 as a Addiction Medicine (Internal Medicine) Physician in MANASSAS, Virginia.

326
Part D claims, 2023
$44.16
industry payments (Sunshine Act)

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.

GERALD LEE, M.D., PHD's Medicare Part D volume vs every U.S. prescriber

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

326 Top 43% higher than 57% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). This entry sits in this band. 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)

GERALD LEE, M.D., PHD 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 GERALD LEE, M.D., PHD?

Quality data not reported

NPI registry status

Active

Issued 01/09/2008

NPI 1184809030

Primary specialty

Addiction Medicine (Internal Medicine) Physician

Niche

553 US NPIs in this specialty

Medicare Part D claims

326 77% vs specialty avg

2023 prescription claims

Specialty avg: 1,403

Specialty distribution in Virginia

How Addiction Medicine (Internal Medicine) Physician compares to other specialties among Virginia providers

Virginia providers

Addiction Medicine (Internal Medicine) Physician share within Virginia

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

Specialty board-certification context

Estimated specialty board-certified rate — Addiction Medicine (Internal Medicine) Physician (ABMS / AOA reference)

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

Est. board-certified rate (Addiction Medicine (Internal Medicine) Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Addiction Medicine (Internal 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).

GERALD LEE, M.D., PHD appears in the CMS NPPES registry as a Addiction Medicine (Internal Medicine) Physician provider holding M.D., PHD credentials at 8551 RIXLEW LANE, MANASSAS, VA, 20109, with a listed phone of (703) 361-4357. NPI 1184809030 was issued on 01/09/2008. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what LEE 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 326 prescription claims written by this provider, covering 32 Medicare beneficiaries and totaling roughly $68K in drug spend, with an opioid prescribing rate of 42.3%. 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.

Addiction Medicine (Internal Medicine) Physician is a narrow specialty nationwide, with 553 enrolled providers across 46 states and an average of 1,403 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

8551 RIXLEW LANE
MANASSAS, VA 20109

Provider Details

NPI 1184809030
Specialty Addiction Medicine (Internal Medicine) Physician
Credentials M.D., PHD
Gender Male
NPI Issued 01/09/2008

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 GERALD LEE, M.D., PHD. Source: openpaymentsdata.cms.gov.

Total received

$44

Largest payer

Teva Pharmaceuticals USA, Inc.

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.

Medicare Part D Prescribing Data

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

326
Total Claims
$68K
Total Drug Cost
32
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
330
Total Day Supply
8,710
Generic Drug Cost
$16K
Opioid Claims
138 (42.3% rate)

Patient Demographics

Average Patient Age
61.7 years
Avg HCC Risk Score
1.49
Gender Split
59% female / 41% male
Age Distribution
<65: 14, 65-74: 16, 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 GERALD LEE, M.D., PHD 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
Buprenorphine-Naloxone
Buprenorphine Hcl/Naloxone Hcl
57
Oxycodone Hcl
42
Xtampza Er
Oxycodone Myristate
36
Oxycodone-Acetaminophen
Oxycodone Hcl/Acetaminophen
31
Zolpidem Tartrate
21
Belbuca
Buprenorphine Hcl
12
Buprenorphine Hcl
12

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

Addiction Medicine (Internal Medicine) Physician Overview

How GERALD LEE, M.D., PHD fits within the Addiction Medicine (Internal Medicine) Physician landscape nationally.

553
Addiction Medicine (Internal Medicine) Physician Providers in US
46
States with Addiction Medicine (Internal Medicine) Physician
1,403
Avg Claims per Provider

GERALD LEE, M.D., PHD's 326 claims are below the specialty average of 1,403.

Nearby Addiction Medicine (Internal Medicine) Physician Providers in Virginia

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

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

Frequently Asked Questions

What is GERALD LEE, M.D., PHD's specialty?
GERALD LEE, M.D., PHD specializes in Addiction Medicine (Internal Medicine) Physician and practices in MANASSAS, Virginia. Credentials: M.D., PHD.
How much does GERALD LEE, M.D., PHD prescribe under Medicare Part D?
In 2023, GERALD LEE, M.D., PHD wrote 326 Medicare Part D claims totaling $68K in drug costs for 32 beneficiaries.
Where is GERALD LEE, M.D., PHD located?
GERALD LEE, M.D., PHD is located at 8551 RIXLEW LANE, MANASSAS, VA, 20109. Phone: (703) 361-4357.
What is GERALD LEE, M.D., PHD's NPI number?
GERALD LEE, M.D., PHD's National Provider Identifier (NPI) is 1184809030, issued on 01/09/2008.
Does GERALD LEE, M.D., PHD prescribe opioids?
Yes, GERALD LEE, M.D., PHD had 138 opioid claims in 2023 with an opioid prescribing rate of 42.3%.
How many Addiction Medicine (Internal Medicine) Physician providers are there in the US?
There are 553 Addiction Medicine (Internal Medicine) Physician providers across 46 states in the US. The average Addiction Medicine (Internal Medicine) Physician provider writes 1,403 Medicare Part D claims per year.
What drugs does GERALD LEE, M.D., PHD prescribe most often?
Based on 2023 Medicare Part D data, GERALD LEE, M.D., PHD's most frequently prescribed drugs include Buprenorphine-Naloxone, Oxycodone Hcl, Xtampza Er. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does GERALD LEE, M.D., PHD accept Medicare?
GERALD LEE, M.D., PHD appears in CMS Medicare data with 326 Part D claims and 32 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify GERALD LEE, M.D., PHD's credentials?
GERALD LEE, M.D., PHD's NPI is 1184809030 with credentials M.D., PHD. 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