Holly Ryerson Dahlman, M.D.

Internal Medicine

Holly Ryerson Dahlman is an Internal Medicine specialist based in Lutherville, MD with over 30 years of clinical experience. Medicare-enrolled per CMS records and offers virtual telehealth visits.

(410) 583-2890Lutherville, MD
Telehealth Available
NPI Active per CMS — Q2 2026|Medicare Enrolled|Order & Refer

With over 30 years in internal medicine, Holly Ryerson Dahlman, M.D. is a long-established internist in Lutherville. She graduated from Johns Hopkins University School of Medicine in 1996 and has 30+ years of clinical experience. She regularly sees Medicare patients with hypertension, high cholesterol, and arthritis (per CMS claims data).

At a glance

  • Prescribes opioids less than 47% of reporting doctors in Maryland
  • Uses generic medications more than 48% of reporting doctors in Maryland
  • Virtual visits available — no app or travel required
1 of 874 Internal Medicine providers in MDSee all Internal Medicine in Lutherville30+ years experienceNPI since 2006

Older · 6613dNPPES updated 2008-04-15 · verify NPI on CMS · Verify license at Maryland Board of Physicians

Contact & Location

Practice Location

2360 W Joppa Rd Green Spring Internal Medicine, Llc - Suite 210, Lutherville, MD 21093-4624

Fax: (410) 583-2891
CMS Clinical Data

How Does This Doctor Compare?

Based on Medicare data, this doctor prescribes opioid pain medications conservatively, favors affordable generic drugs over brand-name ones.

Opioid Rx

↓ Lower = better

0.55%

Maryland avg: 4.4 · US avg: 5.1

Higher than most doctors nationally(-4.5 pts)

Typical range among reporting doctors in Maryland

0.55% of this doctor's prescriptions are opioid pain medications. Lower means more cautious prescribing.

Generic Rx

↑ Higher = better

87.8%

Maryland avg: 83.4 · US avg: 82.8

Higher than most doctors nationally(+5 pts)

Typical range among reporting doctors in Maryland

How often this doctor prescribes affordable generic drugs instead of expensive brand-name ones.

Medicare Patients

436

Unique beneficiaries

Standard volume

Prescription Recipients

420

Patients prescribed

Prescriptions Written

4,745

Total claims

Total Medicare drug cost: $636k

Percentile rankings compared against 2,391 reporting peers in Maryland.

Data Note: Sourced from CMS Medicare Provider Utilization & Payment Data. Percentile rankings compare this provider against all peers with reported data in the same state. Updated annually to reflect the latest federal reporting cycle.

Patient Condition Panel

What This Doctor Treats Most

Based on Medicare claims data — here's what patients commonly see this doctor for

Based on Medicare data, this doctor primarily manages Hypertension, High Cholesterol, and Arthritis.

Hypertension
Higher than avg (+5%)75%

High blood pressure — a leading risk factor for heart disease and stroke

US avg: 70.2%

↑ More patients than average (+5%) — a focus area for this doctor

High Cholesterol
Higher than avg (+5%)75%

Elevated cholesterol or triglycerides that increase heart disease risk

US avg: 70.4%

↑ More patients than average (+5%) — a focus area for this doctor

Arthritis
Higher than avg (+4%)53%

Joint inflammation causing pain, swelling, and stiffness

US avg: 49.3%

↑ More patients than average (+4%) — a focus area for this doctor

Mood Disorders
35%

Conditions affecting emotional state, including depression and bipolar disorder

Depression
32%

A mood disorder causing persistent sadness and loss of interest in activities

US avg: 31.8%
Chronic Kidney Disease
Higher than avg (+1%)31%

Gradual loss of kidney function over time, often linked to diabetes or hypertension

US avg: 29.6%

↑ More patients than average (+1%) — a focus area for this doctor

Osteoporosis
Higher than avg (+10%)28%

Weakened bones that are more prone to fractures, common in older adults

US avg: 18.1%

↑ More patients than average (+10%) — a focus area for this doctor

Diabetes
Lower than avg (-9%)25%

A condition where the body cannot properly regulate blood sugar levels

US avg: 34.5%

↓ Fewer patients than average (-9%) — less common here

GeneralBehavioralNational avg

Percentage of this provider's Medicare patients diagnosed with each condition. Source: CMS Utilization Data.

Community Context

Social Vulnerability Index: 0.45 / 1.00

Below-average vulnerability

She practices in a community where the CDC measures social vulnerability across socioeconomic status, household composition, racial/ethnic minority status, and housing/transportation factors. A higher index indicates more residents may face barriers accessing care.

Source: CDC/ATSDR Social Vulnerability Index.

Patient Reviews

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Background & Specialty

Education, training, and specialty classification from CMS NPPES and Medicare records.

Career Journey
  1. Graduated medical school · 1996

    Johns Hopkins University School of Medicine

  2. 30 years in practice

    Senior practitioner

Internal MedicineAllopathic & Osteopathic Physicians

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

Taxonomy: 207R00000X

Education & Training

Johns Hopkins University School of Medicine (Class of 1996)

Practice Footprint

Mailing address

2360 W Joppa Road Suite 210, Lutherville, MD 21093-4624

Differs from practice location

Virtual Internal Medicine Care With Holly Ryerson Dahlman

NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.

Schedule a virtual visit with Holly Ryerson Dahlman for blood pressure monitoring, cholesterol management, arthritis follow-ups — no travel to Lutherville required. The office sends a secure video link before your appointment. Most visits take 15–30 minutes. Medicare enrolled per CMS records.

Frequently Asked Questions

Common questions about Holly Ryerson Dahlman

NPI records show Dr. Dahlman as active with telehealth listed in Lutherville, MD. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (410) 583-2890.

Verified across 6 federal data sources

Sourced from CMS NPPES · OIG LEIE · CMS Medicare Part D · CMS Physician Comparator · HRSA HPSA · CDC SVI. See Data Methodology.

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Medical Disclaimer: NPI Telehealth is a provider directory for informational purposes only. This page does not constitute medical advice, diagnosis, or treatment recommendations. Provider data is sourced from the CMS NPPES federal registry and public Medicare datasets. NPI Telehealth does not verify clinical qualifications beyond federal records. Data may not reflect real-time availability — always contact the provider's office directly to confirm details before seeking care.

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