Individual provider

Nathan Molony-steiner, M.D.

Pediatric Anesthesiology Physician Anesthesiology Physician Internal Medicine Physician Medicare enrolled

Nathan Molony-steiner, M.D. is a Pediatric Anesthesiology Physician in Park Ridge, IL, registered under NPI 1851826861. This provider registers 4 separate taxonomy codes, which usually means they practise across more than one recognised specialty.

Getting there

The practice address on file is 1775 DEMPSTER ST, Park Ridge, IL 60068. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.

1775 DEMPSTER ST, Park Ridge, IL 60068 Open in Google Maps →

Credentials and Medicare

State licence
LicenceStateSpecialty
ME162300 FL Pediatric Anesthesiology Physician primary
036.157994 IL Anesthesiology Physician
ME162300 FL Anesthesiology Physician
MT212853 PA Internal Medicine Physician
125071645 IL Anesthesiology Physician
ME162300 IL Pediatric Anesthesiology Physician

Licences are recorded in 3 states: FL, IL, PA. Providers licensed in several states often practise near a state border or deliver telehealth across state lines.

Medicare (PECOS)
Status
Approved
Provider type
Practitioner - Anesthesiology
PAC ID
2264709518

Enrolled in Medicare 2 times, across 2 states:

StateEnrollment IDProvider type
Illinois I20210831003032 Practitioner - Anesthesiology
Florida I20230914001049 Practitioner - Anesthesiology

Medicare enrolment is recorded as approved under the provider type Practitioner - Anesthesiology. There are 2 separate enrolment records across 2 states (IL, FL). Multiple enrolments usually mean the provider bills Medicare from more than one practice location, or has kept an earlier enrolment after moving. Each record carries its own enrolment ID, listed above. Being enrolled means the provider can bill Medicare; it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.

Licensed in 3 states

This provider holds licences in 3 states: Florida, Illinois and Pennsylvania. The practice address on file is in Park Ridge, IL, but a licence in another state usually means they see patients there too — either at a second location or by telehealth. If the address above is far from you, it is worth calling to ask whether they practise closer to where you live.

FL Florida
Licence
ME162300
Specialty
Pediatric Anesthesiology Physician
Verify with the FL board →
IL Illinois practice address
Licence
036.157994
Specialty
Anesthesiology Physician
Verify with the IL board →
PA Pennsylvania
Licence
MT212853
Specialty
Internal Medicine Physician
Verify with the PA board →

Licence numbers are self-reported to NPPES at registration. They do not confirm a licence is currently active, in good standing, or valid for the specialty shown — only the state board can tell you that, which is why we link to each one.

What Pediatric Anesthesiology covers

An anesthesiologist who has had additional skill and experience in and is primarily concerned with the anesthesia, sedation, and pain management needs of infants and children. A pediatric anesthesiologist generally provides services including the evaluation of complex medical problems in infants and children when surgery is necessary, planning and care for children before and after surgery, pain control, anesthesia and sedation for any procedures out of the operating room such as MRI, CT scan, and radiation therapy. NUCC Health Care Provider Taxonomy, code 207LP3000X
Allopathic & Osteopathic Physicians Anesthesiology Pediatric Anesthesiology

All registered taxonomy codes

This provider registers 7 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.

CodeSpecialtyLicenceState
207LP3000X Pediatric Anesthesiology Physician Pediatric Anesthesiology ME162300 FL primary
207L00000X Anesthesiology Physician 036.157994 IL
207L00000X Anesthesiology Physician ME162300 FL
207R00000X Internal Medicine Physician MT212853 PA
390200000X Student in an Organized Health Care Education/Training Program
207L00000X Anesthesiology Physician 125071645 IL
207LP3000X Pediatric Anesthesiology Physician Pediatric Anesthesiology ME162300 IL

The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.

Full NPPES record

An NPI-1 identifies a single person. It stays with the clinician for life, even if they move practice or change state, which is why the address on file can lag behind where they actually work today.

NPI1851826861 valid check digit
Entity typeIndividual (NPI-1)
Enumeration dateApr 27, 2017
Last updatedJul 5, 2024
StatusActive
Sole proprietorNo
CredentialM.D.
Practice address 1775 DEMPSTER ST
Park Ridge, IL 60068
(847) 723-2210
Other identifiers 125071645 · Other (IL)
This record was updated on Jul 5, 2024, which is recent enough that the contact details are likely still accurate.

Number check

1851826861 passes the NPI check digit test The final digit 1 matches the value computed from the first nine digits, so this is a well-formed NPI.
How the check works, step by step

Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.

Digit 8 0 8 4 0 1 8 5 1 8 2 6 8 6
Doubled? ×2 ×2 ×2 ×2 ×2 ×2 ×2
Value 8 0 8 8 0 2 8 1 1 7 2 3 8 3

Sum = 59 · next multiple of 10 = 60 · check digit = 1 · actual last digit = 1

A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.

Common questions

What is NPI number 1851826861?
NPI 1851826861 is the National Provider Identifier assigned to Nathan Molony-steiner, M.D. in Park Ridge, IL. It is a 10-digit number issued by the Centers for Medicare & Medicaid Services and used on claims, referrals, and prescriptions to identify the provider.
What does Pediatric Anesthesiology cover?
An anesthesiologist who has had additional skill and experience in and is primarily concerned with the anesthesia, sedation, and pain management needs of infants and children. A pediatric anesthesiologist generally provides services including the evaluation of complex medical problems in infants and children when…
How do I contact Nathan Molony-steiner, M.D.?
The phone number on file with NPPES is (847) 723-2210, last updated Jul 5, 2024. Because NPPES is only updated when a provider files a change, call ahead to confirm the number and the current practice address before visiting.
Does Nathan Molony-steiner, M.D. accept Medicare?
This NPI has an approved Medicare enrolment in PECOS, which means the provider is enrolled to bill Medicare. Enrolment does not guarantee they are accepting new Medicare patients — verify directly with the office.
Is NPI 1851826861 a valid number?
Yes. 1851826861 passes the Luhn check digit validation that CMS uses for NPI numbers, and it resolves to an active record in the registry.
How to use this page. Everything here comes from public federal records. Tips Health does not verify quality of care, confirm that a licence is currently active, or check malpractice history, and accepts no fees for placement. A listing is not a recommendation. Verify independently before seeking care.