Dr. Alexander B. Youngdahl, DO

  • Allentown, PA
  • Emergency medicine physician
NPI1063899706PAC ID9739400888
Medicare services, 2024
410
Medicare patients, 2024
393
Part D claims, 2024
154
Hospital affiliations
3
Industry payments
$390
Practice address
1200 South Cedar Crest Boulevard, Allentown, PA 18103
Practice phone
Call (610) 402-8000
Professional email
Get professional email
Personal email
Get personal email
Mobile number
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Social profiles

Primary practice

Lehigh Valley Hospital-Cedar Crest

Hospital · Allentown, Pennsylvania

See all 5 affiliations

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Dr. Alexander B. Youngdahl is an emergency medicine physician in Allentown, Pennsylvania

Dr. Youngdahl practices at Lehigh Valley Hospital-Cedar Crest in Allentown, Pennsylvania, part of Thomas Jefferson University.

Dr. Youngdahl's NPI, 1063899706, was assigned on May 1, 2015. Dr. Youngdahl holds Pennsylvania license OS018879.

NPI and contact details
Medicare PAC ID
9739400888
NPI enumeration date
May 1, 2015
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(610) 402-8000
Professional email
Get email
Personal email
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Mobile number
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Sex
Male
Estimated age
37
Medical school graduation
2015

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Alexander B. Youngdahl practices at Lehigh Valley Hospital-Cedar Crest in Allentown, Pennsylvania

Dr. Youngdahl's primary practice is Lehigh Valley Hospital-Cedar Crest, at 1200 South Cedar Crest Boulevard, Allentown, PA 18103 in Lehigh County. The practice phone is (610) 402-8000.

Source: Dmand AI Affiliation Data

Dr. Alexander B. Youngdahl is affiliated with 3 sites of care and 2 medical groups

Dr. Youngdahl's primary practice is Lehigh Valley Hospital-Cedar Crest in Allentown, Pennsylvania, part of Thomas Jefferson University. Dr. Youngdahl is also affiliated with Lehigh Valley Hospital-Hazleton. The medical group on file is Lehigh Valley Physician Group (LVPG). Dmand AI also links Dr. Youngdahl to 1 more hospital and 1 medical group, each named with a free account.

See all 5 affiliations for Dr. Youngdahl

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Alexander B. Youngdahl's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Youngdahl practices, 3 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Lehigh Valley Hospital-Cedar CrestAvailable with a free account
+2 more sites and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

For health IT teams

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Dr. Alexander B. Youngdahl is one of 2,549 emergency medicine physicians in Pennsylvania

Emergency medicine is Dr. Youngdahl's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Youngdahl is licensed in Pennsylvania.

Specialties and state licenses

  • Emergency medicine, PennsylvaniaPrimaryLicense OS018879 · taxonomy 207P00000X

Emergency medicine physicians near Dr. Youngdahl

Counts of emergency medicine physicians with a Dmand AI profile, by place and practice. Each opens the list.

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. Alexander B. Youngdahl billed Medicare for 410 services in 2024

CMS data shows 410 Medicare services from Dr. Youngdahl across 5 procedure codes in 2024, for 393 Medicare patients. Medicare paid $43,521 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 2024410
Medicare patients393
Paid by Medicare$43,521
Procedure codes5

Dr. Youngdahl's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 4782024: 39218%
Tests and treatments
2023: 212024: 1814%
Imaging
2023: 242024: 0100%

Dr. Youngdahl compared with the Pennsylvania median for emergency medicine physicians, 2024

  • Dr. Youngdahl
  • Pennsylvania median
Medicare services
410vs 24369% above
Medicare patients
393vs 23369% above
Part D claims
74vs 4085% above

Medians across 2,501 emergency medicine physicians in Pennsylvania with Dmand AI profiles that report each measure.

Dr. Youngdahl's most billed Medicare procedure codes, 2024

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

See all procedures by Dr. Youngdahl

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Alexander B. Youngdahl treated 393 Medicare patients in 2024, average age 75

CMS counts 393 Medicare patients who saw Dr. Youngdahl in 2024. The largest group is 75 to 84, with 133 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 21% are also on Medicaid. Their average risk score is 2.02, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Dr. Youngdahl's median patient age at 43, with 60% women.

Medicare patients, 2024393
Average age75
Average risk score2.02
Also on Medicaid21%

Dr. Youngdahl's Medicare patients by age, 2024

Dr. Youngdahl's Medicare patients by sex, 2024

  • Women22156%
  • Men17244%

Chronic conditions among Dr. Youngdahl's Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol75%
  3. Arthritis57%
  4. Chronic kidney disease45%
  5. Anxiety44%
  6. Ischemic heart disease43%
  7. Mood disorders41%
  8. Diabetes40%

Share of Medicare patients with each condition. A patient can have several.

Dr. Youngdahl's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 43

Patient panel by sex, all payers

  • Women60%
  • Men39%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Alexander B. Youngdahl wrote 154 Medicare Part D claims in 2024

In 2024, Dr. Youngdahl wrote 154 Medicare Part D claims for 111 patients. 88% of them were for generic drugs. CMS names the drug for 74 of them, across 5 drugs with 11 or more claims each, at $9,583 in total drug cost. In 2023, CMS named 68 claims across 5 drugs.

Part D claims, 2024154
Drugs named by CMS5
Total drug cost$9,583
Part D patients111

Dr. Youngdahl's Part D claims by kind of drug, 2024

  • Generic136 claims88%
  • Brand-name18 claims12%

Dr. Youngdahl's most prescribed drugs by claims, 2024

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Drug classes CMS tracks in Dr. Youngdahl's Part D claims, 2024

  • Opioids8%12 of 154 claims
  • Antibiotics22%34 of 154 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 682024: 749%

Drugs named by CMS: 5 in 2024, 5 in 2023.

See all prescribing by Dr. Youngdahl

Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data

How Dr. Alexander B. Youngdahl takes part in Medicare

Dr. Youngdahl accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Source: Doctors and Clinicians National Downloadable File (CMS)

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Dr. Alexander B. Youngdahl received $390 in industry payments from 2016 to 2022

CMS Open Payments shows 11 general payments to Dr. Youngdahl from 6 drug and device companies from 2016 to 2022. Food and beverage make up the largest share, 100% of the total. Mallinckrodt LLC paid the most, $114.

General payments to Dr. Youngdahl by program year, 2016 to 2022

Companies that paid Dr. Youngdahl the most, 2016 to 2022

Share is of all general payments to this clinician.

See all payments to Dr. Youngdahl

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Sources for Dr. Alexander B. Youngdahl's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Alexander B. Youngdahl

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Dr. Alexander B. Youngdahl's NPI number?

Dr. Alexander B. Youngdahl's NPI number is 1063899706. It was assigned on May 1, 2015, and it is active in the NPI Registry.

What kind of doctor is Dr. Alexander B. Youngdahl?

Dr. Alexander B. Youngdahl is an emergency medicine physician in Allentown, Pennsylvania. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).

Where does Dr. Alexander B. Youngdahl practice?

Dr. Youngdahl practices at 1200 South Cedar Crest Boulevard, Allentown, PA 18103. Dr. Youngdahl's primary practice is Lehigh Valley Hospital-Cedar Crest in Allentown, Pennsylvania, part of Thomas Jefferson University. Dmand AI also links Dr. Youngdahl to 1 hospital and 1 medical group.

What is Dr. Alexander B. Youngdahl's office phone number?

The practice phone on file for Dr. Youngdahl is (610) 402-8000.

What is Dr. Alexander B. Youngdahl's medical license number?

Dr. Youngdahl holds Pennsylvania license OS018879.

Which hospitals is Dr. Alexander B. Youngdahl affiliated with?

Dr. Youngdahl practices at Lehigh Valley Hospital-Cedar Crest in Allentown, Pennsylvania. Dr. Youngdahl is also affiliated with Lehigh Valley Hospital-Hazleton. Dmand AI links Dr. Youngdahl to 1 more hospital.

What medical group is Dr. Alexander B. Youngdahl part of?

Dr. Youngdahl is linked to Lehigh Valley Physician Group (LVPG). Dmand AI links Dr. Youngdahl to 1 more medical group.

Does Dr. Alexander B. Youngdahl accept Medicare?

Yes. CMS data shows Dr. Youngdahl billed Medicare for 410 services in 2024, and Dr. Youngdahl accepts Medicare assignment.

How many Medicare patients does Dr. Alexander B. Youngdahl see?

CMS counts 393 Medicare patients who saw Dr. Youngdahl in 2024, with an average age of 75.

What services does Dr. Alexander B. Youngdahl bill to Medicare?

In 2024, Dr. Youngdahl's most billed Medicare services were emergency department visit (99285), emergency department visit (99284) and critical care (99291).

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What drugs does Dr. Alexander B. Youngdahl prescribe most?

In 2024 Medicare Part D data, Dr. Youngdahl's most prescribed drugs by claims were Cephalexin, Eliquis and Ondansetron ODT.

Has Dr. Alexander B. Youngdahl received payments from drug or device companies?

CMS Open Payments shows $390 in general payments to Dr. Youngdahl from 6 companies from 2016 to 2022. The largest total came from Mallinckrodt LLC.

How long has Dr. Alexander B. Youngdahl been practicing?

Dr. Youngdahl graduated from medical school in 2015, 11 years ago.

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