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DR. WILLIAM HERBERT JACOBSEN II M.D.
NPI 1659665800
Emergency Medicine in Atlanta, GA

Active since June 06, 2011PECOS EnrolledAccepts Medicare Assignment
235 PEACHTREE ST NE STE 2100, ATLANTA, GA 30303(770) 994-9326 Get Directions Write a Review

NPPES record last updated: July 22, 2014. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Dr. William Herbert Jacobsen Ii M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. WILLIAM HERBERT JACOBSEN II M.D. (NPI 1659665800) is an individual emergency medicine provider in Atlanta, Georgia, licensed in Georgia (72061) and active in the NPI registry since June 2011. He is enrolled in Medicare PECOS, is affiliated with Northside Hospital Forsyth, and is a graduate of Medical College Of Georgia School Of Medicine (2011).

NPPES Registry Identity

NPI1659665800
Entity TypeIndividualMale
Primary Taxonomy207P00000X
Provider Legal NameDR. WILLIAM HERBERT JACOBSEN IICredential: M.D.
Location Address235 PEACHTREE ST NE STE 2100Atlanta, GA 30303-1405
Mailing Address235 Peachtree St Ne Ste 2100Atlanta, GA 30303-1405 · (770) 994-9326
Phone(770) 994-9326
Sole ProprietorYes
Medical School CMSMedical College Of Georgia School Of MedicineGraduated 2011
Enumeration DateJune 6, 2011
Last NPPES UpdateJuly 22, 2014
✔ NPI 1659665800 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
Licenses✔ Licensed in GA · 72061✔ Licensed in SC · LL 33539
Definition
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
235 PEACHTREE ST NE STE 2100, Atlanta, GA 30303
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Oscar Health, Oscar Insurance Company.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. William Herbert Jacobsen Ii M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID2466671888
PECOS Enrollment IDI20140917002482
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

5

Medicare enrollment records show William Jacobsen reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Emerginet Henry, LLC
Same address
Emergency Medical Services
235 PEACHTREE ST NE, NORTH TOWER, SUITE 2100
Atlanta, GA 30303
  • Reassigned Medicare billing, Georgia enrollment
  • 55 clinicians in this Medicare group
NPI 1811946627 (770) 994-9326
Emerginet, LLC
Same address
Emergency Medical Services
235 PEACHTREE ST NE, NORTH TOWER, SUITE 2100
Atlanta, GA 30303
  • Reassigned Medicare billing, Georgia enrollment
  • 45 clinicians in this Medicare group
NPI 1164480869 (770) 994-9326
Northside Emergency Associates, LLC
10 mi
Emergency Medicine
1000 JOHNSON FERRY RD
Sandy Springs, GA 30342
  • Reassigned Medicare billing, Georgia enrollment
  • 162 clinicians in this Medicare group
NPI 1285686303 (954) 939-5000
Walker Lake Emergency Group, PC
23 mi
Emergency Medicine
1412 MILSTEAD AVE NE
Conyers, GA 30012
  • Reassigned Medicare billing, Georgia enrollment
  • 85 clinicians in this Medicare group
NPI 1437629342 (770) 918-3000
Gwinnett Emergency Specialists Observation Services, LLC
25 mi
Emergency Medicine
1000 MEDICAL CENTER BLVD
Lawrenceville, GA 30046
  • Reassigned Medicare billing, Georgia enrollment
  • 134 clinicians in this Medicare group
NPI 1720373129 (954) 939-5000

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 4

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Emergency department visit with high level of medical decision making 99285
An emergency department visit for severe conditions is when you urgently seek medical help due to serious health issues. These could be severe injuries, breathing problems, unbearable pain, or sudden severe illness. Doctors and nurses will provide immediate care to stabilize your condition.
445 services427 patients
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 93010
A routine electrocardiogram (ECG) with 12 leads is a simple, non-invasive test that records the electrical activity of your heart. It helps in identifying heart conditions by detecting irregularities in your heart rhythms. The results are interpreted and a report is provided.
302 services282 patients
Critical care, first 30-74 minutes 99291
Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.
91 services90 patients
Emergency department visit with moderate level of medical decision making 99284
An emergency department visit for a high-severity issue means you're experiencing a serious health problem that needs immediate attention. This could be a severe injury, serious illness, or life-threatening condition. Medical professionals will provide urgent care to stabilize your condition.
77 services76 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Northside Hospital Forsyth

Acute Care Hospitals · Cumming, GA
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number110005
Location1200 Northside Forsyth DriveCumming, GA 30041 · Forsyth County
Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 30303 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$88.06 typical visit price
range $56.84 – $172.43
Typical copayment $22.01 (range $14.21 – $43.10)
Most-billed visit code 99203
Established Patient
$100.20 typical visit price
range $18.22 – $140.40
Typical copayment $25.05 (range $4.55 – $35.10)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 2

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

ALEKSANDR ISKHAKOV
Physician Assistant
235 PEACHTREE ST NE STE 2100
ATLANTA, GA 30303
Fulton County (770) 994-9326
LISA DENARDI
Emergency Medicine
235 PEACHTREE ST NE STE 2100, UPMC PASSAVANT HOSPITAL
ATLANTA, GA 30303
Fulton County (770) 994-9326

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is William Jacobsen's NPI number?

The NPI number for William Jacobsen is 1659665800. It was assigned to this individual provider in the NPPES registry on June 6, 2011.

Where is William Jacobsen located?

William Jacobsen practices at 235 Peachtree St NE Ste 2100, Atlanta, GA 30303. The listed phone number is (770) 994-9326.

What is William Jacobsen's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

Is William Jacobsen enrolled in Medicare?

Yes. William Jacobsen is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for William Jacobsen's services?

According to the CMS Revalidation Reassignment List (October 2026 release), William Jacobsen reassigns Medicare benefits to 5 organizations: Emerginet Henry, LLC (Atlanta, GA), Emerginet, LLC (Atlanta, GA), Northside Emergency Associates, LLC (Sandy Springs, GA), Walker Lake Emergency Group, PC (Conyers, GA) and Gwinnett Emergency Specialists Observation Services, LLC (Lawrenceville, GA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for William Jacobsen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does William Jacobsen accept?

Health plans from Oscar Health and Oscar Insurance Company list William Jacobsen as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is William Jacobsen affiliated with any hospitals?

According to CMS data, William Jacobsen is affiliated with Northside Hospital Forsyth.

When was this NPI record last updated?

The NPPES record for William Jacobsen was last updated on July 22, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.