2026 NPPES data Psychosomatic Medicine Physician NPI 1609086057 M.D.
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STEPHEN LAMB, M.D.

Psychosomatic Medicine Physician in LEXINGTON, Kentucky. 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
2K
Medicare Part D claims · 91 beneficiaries · Psychosomatic Medicine Physician avg: 645
Generic prescribing
93%
generic claims · 7% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$386.66
22 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

STEPHEN LAMB, M.D. filed 1,801 Medicare Part D claims in 2023 as a Psychosomatic Medicine Physician in LEXINGTON, Kentucky, prescribing 93% generic.

2K
Part D claims, 2023
93%
generic prescribing
$386.66
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.

STEPHEN LAMB, M.D.'s Medicare Part D volume vs every U.S. prescriber

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

1,801 Top 17% higher than 83% 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%). Below this entry. 1,400–1,600: 21,710 prescribers (2%). Below this entry. 1,600–1,800: 19,072 prescribers (1%). Below this entry. 1,800–2,000: 16,451 prescribers (1%). This entry sits in this band. 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)

STEPHEN LAMB, 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).

What does the federal data show about STEPHEN LAMB, M.D.?

Quality data not reported

NPI registry status

Active

Issued 05/23/2007

NPI 1609086057

Primary specialty

Psychosomatic Medicine Physician

Rare

491 US NPIs in this specialty

Medicare Part D claims

1,801 179% vs specialty avg

2023 prescription claims

Specialty avg: 645

Specialty distribution in Kentucky

How Psychosomatic Medicine Physician compares to other specialties among Kentucky providers

Kentucky providers

Psychosomatic Medicine Physician share within Kentucky

1. Psychosomatic Medicine Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Psychosomatic Medicine Physician share within Kentucky

Specialty board-certification context

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

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

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

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

STEPHEN LAMB, M.D. is a Psychosomatic Medicine Physician provider practicing in LEXINGTON, Kentucky, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1609086057. 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.

STEPHEN LAMB, M.D. appears in the CMS NPPES registry as a Psychosomatic Medicine Physician provider holding M.D. credentials at 436 W 2ND ST, LEXINGTON, KY, 40507, with a listed phone of (859) 253-9024. NPI 1609086057 was issued on 05/23/2007. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what LAMB 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 1,801 prescription claims written by this provider, covering 91 Medicare beneficiaries and totaling roughly $189K in drug spend, split 7% brand-name and 93% 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.

Psychosomatic Medicine Physician is a narrow specialty nationwide, with 491 enrolled providers across 43 states and an average of 645 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

436 W 2ND ST
LEXINGTON, KY 40507

Provider Details

NPI 1609086057
Specialty Psychosomatic Medicine Physician
Credentials M.D.
Gender Male
NPI Issued 05/23/2007

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 STEPHEN LAMB, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$387

Largest payer

ITI, Inc. (d/b/a Intra-Cellular Therapies, 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.

Brand vs generic prescribing mix · Generic-heavy

STEPHEN LAMB, M.D. — brand share 7.0%
Specialty average (est.)

7% brand-name claims vs 93% generic, on 1,801 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.

1,801
Total Claims
$189K
Total Drug Cost
91
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
2,528
Total Day Supply
74,115
Brand vs Generic
7% brand / 93% generic
Brand Drug Cost
$111K
Generic Drug Cost
$78K

Patient Demographics

Average Patient Age
62.4 years
Avg HCC Risk Score
1.18
Gender Split
60% female / 40% male
Age Distribution
<65: 43, 65-74: 38, 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.

Drug Claims
Alprazolam
143
Clonazepam
142
Buspirone Hcl
115
Quetiapine Fumarate
96
Duloxetine Hcl
71
Bupropion Xl
Bupropion Hcl
70
Aripiprazole
68
Dextroamphetamine-Amphetamine
Dextroamphetamine/Amphetamine
66
Escitalopram Oxalate
65
Venlafaxine Hcl Er
Venlafaxine Hcl
54

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

Psychosomatic Medicine Physician Overview

How STEPHEN LAMB, M.D. fits within the Psychosomatic Medicine Physician landscape nationally.

491
Psychosomatic Medicine Physician Providers in US
43
States with Psychosomatic Medicine Physician
645
Avg Claims per Provider

STEPHEN LAMB, M.D.'s 1,801 claims are above the specialty average of 645.

Frequently Asked Questions

What is STEPHEN LAMB, M.D.'s specialty?
STEPHEN LAMB, M.D. specializes in Psychosomatic Medicine Physician and practices in LEXINGTON, Kentucky. Credentials: M.D..
How much does STEPHEN LAMB, M.D. prescribe under Medicare Part D?
In 2023, STEPHEN LAMB, M.D. wrote 1,801 Medicare Part D claims totaling $189K in drug costs for 91 beneficiaries.
Where is STEPHEN LAMB, M.D. located?
STEPHEN LAMB, M.D. is located at 436 W 2ND ST, LEXINGTON, KY, 40507. Phone: (859) 253-9024.
What is STEPHEN LAMB, M.D.'s NPI number?
STEPHEN LAMB, M.D.'s National Provider Identifier (NPI) is 1609086057, issued on 05/23/2007.
Does STEPHEN LAMB, M.D. prescribe more brand-name or generic drugs?
STEPHEN LAMB, M.D.'s prescribing is 7% brand-name and 93% generic drugs by claim count, with $111K in brand drug costs.
How many Psychosomatic Medicine Physician providers are there in the US?
There are 491 Psychosomatic Medicine Physician providers across 43 states in the US. The average Psychosomatic Medicine Physician provider writes 645 Medicare Part D claims per year.
What drugs does STEPHEN LAMB, M.D. prescribe most often?
Based on 2023 Medicare Part D data, STEPHEN LAMB, M.D.'s most frequently prescribed drugs include Alprazolam, Clonazepam, Buspirone Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does STEPHEN LAMB, M.D. accept Medicare?
STEPHEN LAMB, M.D. appears in CMS Medicare data with 1,801 Part D claims and 91 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify STEPHEN LAMB, M.D.'s credentials?
STEPHEN LAMB, M.D.'s NPI is 1609086057 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