1. Home
  2. Directory
  3. Oklahoma
  4. City
  5. Urology
  6. NPI Profile

NATHAN JOHN ALDER MD
NPI 1902420508
Urology in Oklahoma City, OK

Active since May 31, 2020PECOS EnrolledAccepts Medicare Assignment
4140 W MEMORIAL RD STE 500, OKLAHOMA CITY, OK 73120(405) 749-4230(405) 749-4228 Get Directions Write a Review

NPPES record last updated: September 10, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Sep 10, 2025, Oct 8, 2024, May 31, 2020 (3 updates tracked since 2020).

About Nathan John Alder Md NPPES

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

NATHAN JOHN ALDER MD (NPI 1902420508) is an individual urology provider in Oklahoma City, Oklahoma, licensed in Oklahoma (36058) and active in the NPI registry since May 2020. He is enrolled in Medicare PECOS, is affiliated with Mercy Hospital Oklahoma City, Inc, and is a graduate of Other (2020).

NPPES Registry Identity

NPI1902420508
Entity TypeIndividualMale
Primary Taxonomy208800000X
Provider Legal NameNATHAN JOHN ALDERCredential: MD
Location Address4140 W MEMORIAL RD STE 500Oklahoma City, OK 73120-8300
Mailing Address4140 W Memorial Rd Ste 500Oklahoma City, OK 73120-8300 · (405) 749-4230 · Fax (405) 749-4228
Phone(405) 749-4230
Fax(405) 749-4228
Sole ProprietorNo
Medical School CMSOtherGraduated 2020
Enumeration DateMay 31, 2020
Last NPPES UpdateSeptember 10, 20253 updates tracked since enumeration
NPPES CertifiedSeptember 10, 2025
✔ NPI 1902420508 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyUrologyAllopathic & Osteopathic Physicians
Taxonomy Code208800000X
License✔ Licensed in OK · 36058
Definition
A urologist manages benign and malignant medical and surgical disorders of the genitourinary system and the adrenal gland. This specialist has comprehensive knowledge of and skills in endoscopic, percutaneous and open surgery of congenital and acquired conditions of the urinary and reproductive systems and their contiguous structures.
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Oklahoma, Medica, Mending Health.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Nathan John Alder Md 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 ID1153824263
PECOS Enrollment IDI20250913000824
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.

Hospital Affiliations CMS Care Compare 4

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

Mercy Hospital Oklahoma City, Inc

Acute Care Hospitals · Oklahoma City, OK
4/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number370013
Location4300 West Memorial RoadOklahoma City, OK 73120 · Oklahoma County
Emergency services Birthing friendly

Mercy Hospital Ada

Acute Care Hospitals · Ada, OK
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number370020
Location430 North Monte VistaAda, OK 74820 · Pontotoc County
Emergency services Birthing friendly

Mercy Hospital Ardmore, Inc

Acute Care Hospitals · Ardmore, OK
4/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number370047
Location1011 14th Ave NWArdmore, OK 73401 · Carter County
Emergency services Birthing friendly

Mercy Hospital Guthrie

Critical Access Hospitals · Guthrie, OK
OwnershipVoluntary non-profit - Private
CMS Certification Number371317
Location200 S Academy RdGuthrie, OK 73044 · Logan County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 73120 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
$123.06 typical visit price
range $53.00 – $162.61
Typical copayment $30.76 (range $13.25 – $40.65)
Most-billed visit code 99204
Established Patient
$66.48 typical visit price
range $16.68 – $132.40
Typical copayment $16.62 (range $4.17 – $33.10)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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 Nathan Alder's NPI number?

The NPI number for Nathan Alder is 1902420508. It was assigned to this individual provider in the NPPES registry on May 31, 2020.

Where is Nathan Alder located?

Nathan Alder practices at 4140 W Memorial Rd Ste 500, Oklahoma City, OK 73120. The listed phone number is (405) 749-4230.

What is Nathan Alder's specialty?

The primary specialty registered for this NPI is Urology with taxonomy code 208800000X.

Is Nathan Alder enrolled in Medicare?

Yes. Nathan Alder 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.

What insurance does Nathan Alder accept?

Health plans from Blue Cross and Blue Shield of Oklahoma, Medica and Mending Health list Nathan Alder 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 Nathan Alder affiliated with any hospitals?

According to CMS data, Nathan Alder is affiliated with Mercy Hospital Oklahoma City, Inc, Mercy Hospital Ada, Mercy Hospital Ardmore, Inc and Mercy Hospital Guthrie.

When was this NPI record last updated?

The NPPES record for Nathan Alder was last updated on September 10, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 months 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.