Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
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Lauren Grace Haig, MD

Individual provider Anesthesiology Physician · NPI 1124277421

Lauren Grace Haig, MD practises Anesthesiology in Hamilton Square, New Jersey. Qualified in 2008, 18 years ago. Practices with Rwjbh Observation Associates LLC, a 971-clinician group and accepts Medicare assignment. Licensed in New Jersey.

Years since qualifying
18
Licensed in
NJ
In the registry since
2008
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

2119 Highway 33 Ste B
Hamilton Square, NJ 08690-1740 Not confirmed with CMS for 13 years — call before visiting
Phone: (609) 581-5303
Fax: (609) 631-6839
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Anesthesiology Physician (primary) Taxonomy 207L00000X · Licence 25MA09215200 (NJ)

Record details

NPI number1124277421
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedSeptember 11, 2008
Last updated in NPPESFebruary 21, 2013

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyANESTHESIOLOGY
Medical schoolOTHER
Graduated 2008 (18 years in practice)
Group practice Rwjbh Observation Associates Llc — 971 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients151
Services billed 161 a service is one billed item, such as a visit, a test or a procedure
Average patient age73

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Rwjbh Observation Associates LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 971 clinicians in the practice; 12 are shown here.

Other providers in Hamilton Square