DR. NEIL EDWARD CRITTENDEN M.D.
NPI 1598907115
Internal Medicine - Gastroenterology in Oklahoma City, OK

Q: What is Neil Crittenden's NPI number?

The NPI number for Neil Crittenden is 1598907115. It was assigned to this individual provider in the NPPES registry on March 27, 2009.

Q: What is Neil Crittenden's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Q: When was this NPI record last updated?

The NPPES record for Neil Crittenden was last updated on July 27, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.

Active since March 27, 2009PECOS EnrolledAccepts Medicare Assignment

75/100

CMS Quality Rating

3366 NW EXPRESSWAY, SUITE 400, OKLAHOMA CITY, OK 73112(405) 702-1300(405) 702-1280 Get Directions Write a Review

NPPES record last updated: July 27, 2016. Verified against the NPPES registry weekly; last sync: October 18, 2026.

On this page

About Dr. Neil Edward Crittenden M.d. NPPES

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

DR. NEIL EDWARD CRITTENDEN M.D. (NPI 1598907115) is an individual gastroenterology provider in Oklahoma City, Oklahoma, licensed in Oklahoma (32073) and active in the NPI registry since March 2009. He is enrolled in Medicare PECOS, is affiliated with Integris Bass Baptist Health Center, and is a graduate of University Of Oklahoma College Of Medicine (2009).

NPPES Registry Identity

NPI1598907115

Entity TypeIndividualMale

Primary Taxonomy207RG0100X

Provider Legal NameDR. NEIL EDWARD CRITTENDENCredential: M.D.

Location Address3366 NW EXPRESSWAY, SUITE 400Oklahoma City, OK 73112-4462

Mailing Address3366 Nw Expressway, Suite 400Oklahoma City, OK 73112-4462 · (405) 702-1300 · Fax (405) 702-1280

Phone(405) 702-1300

Fax(405) 702-1280

Sole ProprietorYes

Medical School CMSUniversity Of Oklahoma College Of MedicineGraduated 2009

Enumeration DateMarch 27, 2009

Last NPPES UpdateJuly 27, 2016

✔ NPI 1598907115 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians

Taxonomy Code207RG0100X

License✔ Licensed in OK · 32073

Definition

An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.

Also ListedInternal MedicineTaxonomy 207R00000X · License 44978 (KY)

3366 NW EXPRESSWAY, Oklahoma City, OK 73112

Open in Google Maps ↗

Other Identifiers 2

Medicaid200634860AOK

Medicaid7100132650KY

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Oklahoma, Mending Health, Oscar Insurance Company and more.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. Neil Edward Crittenden 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 ID2668628454

PECOS Enrollment IDI20160727000831

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

Medicare enrollment records show Neil Crittenden reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Digestive Disease Specialists Inc

1.8 mi

Gastroenterology

5015 N PENNSYLVANIA AVE, STE. 303
Oklahoma City, OK 73112

Reassigned Medicare billing, Oklahoma enrollment
40 clinicians in this Medicare group

NPI 1366489213 (405) 767-6630

Integris Ddsi Endoscopy Centers LLC

5.2 mi

Ambulatory Surgical

10029 N OKLAHOMA AVE STE 100
Oklahoma City, OK 73114

Reassigned Medicare billing, Oklahoma enrollment
Also billed through NPI 1760074207 (Oklahoma)
18 clinicians in this Medicare group

NPI 1497347934 (405) 702-1300

Integris Bass Baptist Health Center

44 mi

Rural Health

300 N CHEROKEE ST
Hennessey, OK 73742

Reassigned Medicare billing, Oklahoma enrollment
25 clinicians in this Medicare group

NPI 1659971398 (405) 853-7171

Comanche County Healthcare Corp

65 mi

Family Medicine

102 N BROADWAY
Carnegie, OK 73015

Reassigned Medicare billing, Oklahoma enrollment
160 clinicians in this Medicare group

NPI 1346269925 (580) 654-2500

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 14

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.

Biopsy of large bowel using a flexible endoscope 45380

A biopsy of the large bowel using a flexible endoscope is a procedure where a thin, flexible tube with a camera is inserted through the rectum to examine the bowel. If abnormal tissue is found, a small sample is taken for further examination. This helps in diagnosing conditions like inflammation, polyps, or cancer.

128 services127 patients

Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43239

This procedure involves using a thin, flexible tube with a light and camera, known as an endoscope, to examine the esophagus, stomach, and upper part of the small intestine. Small tissue samples are taken for further examination to help diagnose various conditions.

97 services96 patients

Removal of polyps or growths of large bowel using an endoscope with mechanical snare 45385

This procedure involves using a thin, flexible tube called an endoscope to examine the large bowel. If any abnormal growths or polyps are found, a tool called a mechanical snare is used to remove them. This is a common method to prevent potential health issues.

87 services86 patients

Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk G0121

Colorectal cancer screening, such as a colonoscopy, is a preventive measure to detect early signs of cancer in the large intestine. For individuals not at high risk, it's typically recommended at age 50. A small, flexible tube with a camera is used to examine your colon. It's a safe, effective way to catch issues early.

78 services78 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

67 services63 patients

Insertion of guide wire with dilation of esophagus using a flexible endoscope 43248

This is a procedure where a thin tube, called an endoscope, is gently passed through your mouth into your esophagus. A guide wire is then inserted to help widen any narrow areas. This helps improve swallowing and reduce discomfort.

54 services53 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

44 services44 patients

Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43235

This procedure, known as an upper endoscopy, involves inserting a thin, flexible tube with a camera down the throat to examine the esophagus, stomach, and upper small bowel. It helps diagnose conditions like ulcers or inflammation.

41 services41 patients

Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 99231

Follow-up hospital inpatient care is a daily service where a healthcare professional checks on your health progress during your hospital stay. Each session typically lasts 15 minutes, involving updates on your condition and adjustments to your treatment plan, if necessary.

25 services22 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

20 services20 patients

Diagnostic exam of large bowel using a flexible endoscope 45378

This procedure, known as a colonoscopy, involves using a flexible tube with a light and camera to examine the large intestine. It helps detect any abnormalities such as polyps or inflammation. It's a standard procedure to ensure gut health.

19 services19 patients

Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223

Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.

19 services19 patients

New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203

This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.

17 services17 patients

Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222

Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.

11 services11 patients

Hospital Affiliations CMS Care Compare 5

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

Integris Bass Baptist Health Center

Acute Care Hospitals · Enid, OK

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number370016

Location600 South MonroeEnid, OK 73701 · Garfield County

Emergency services Birthing friendly

Integris Baptist Medical Center, Inc

Acute Care Hospitals · Oklahoma City, OK

2/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number370028

Location3300 Northwest ExpresswayOklahoma City, OK 73112 · Oklahoma County

Emergency services Birthing friendly

Comanche County Memorial Hospital

Acute Care Hospitals · Lawton, OK

1/5 CMS rating

OwnershipGovernment - Hospital District or Authority

CMS Certification Number370056

Location3401 West Gore BlvdLawton, OK 73505 · Comanche County

Emergency services Birthing friendly

Integris Southwest Medical Center

Acute Care Hospitals · Oklahoma City, OK

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number370106

Location4401 South Western AvenueOklahoma City, OK 73109 · Oklahoma County

Emergency services Birthing friendly

Integris Canadian Valley Hospital

Acute Care Hospitals · Yukon, OK

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number370211

Location1201 Health Center ParkwayYukon, OK 73099 · Canadian County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 73112 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

$94.27 typical visit price

range $16.68 – $132.40

Typical copayment $23.56 (range $4.17 – $33.10)

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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

75/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Individually scored

Referred Medical Equipment & Supplies CMS DME claims 4

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Parenteral nutrition solution, not otherwise specified, 10 grams lipids B4185

Other-Enteral and Parenteral · category OB005N

1 supplier40 claims760 services$11.24 avg. paid by Medicare

Parenteral nutrition solution; compounded amino acid and carbohydrates with electrolytes, trace elements, and vitamins, including preparation, any strength, 52 to 73 grams of protein - premix B4193

Other-Enteral and Parenteral · category OB005N

1 supplier40 claims280 services$229.75 avg. paid by Medicare

Parenteral nutrition supply kit; premix, per day B4220

Other-Enteral and Parenteral · category OB005N

1 supplier40 claims280 services$8.01 avg. paid by Medicare

Parenteral nutrition administration kit, per day B4224

Other-Enteral and Parenteral · category OB005N

1 supplier40 claims280 services$25.01 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 20

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

SOOHEE KARAMICHOS BSN,RN,NP-C

Nurse Practitioner (Family)

3366 NW EXPRESSWAY, BUILDING D, SUITE 660
OKLAHOMA CITY, OK 73112

Oklahoma County (405) 947-3345

DR. GARY DEAN BOND MD

Internal Medicine (Nephrology)

3366 NW EXPRESSWAY, STE 550
OKLAHOMA CITY, OK 73112

Oklahoma County (405) 942-5442

MARK STOVER SULLIVAN MD

Dermatology

3366 NW EXPRESSWAY, SUITE 720
OKLAHOMA CITY, OK 73112

Oklahoma County (405) 947-0676

SANTIAGO REYES, M.D., INC

Clinic/Center (Medical Specialty)

3366 NW EXPRESSWAY, SUITE 330
OKLAHOMA CITY, OK 73112

Oklahoma County (405) 945-4495

DIGESTIVE DISEASE SPECIALISTS INC

Clinic/Center (Endoscopy)

3366 NW EXPRESSWAY, SUITE 400
OKLAHOMA CITY, OK 73112

Oklahoma County (405) 702-1300

DIALYSIS SPECIALISTS OF CENTRAL OKLAHOMA

Technician, Other (Renal Dialysis)

3366 NW EXPRESSWAY, SUITE 670
OKC, OK 73112

Oklahoma County (405) 942-5442

DR. DANNY WAYNE SMITH M.D.

Internal Medicine (Gastroenterology)

3366 NW EXPRESSWAY
OKLAHOMA CITY, OK 73112

Oklahoma County (405) 702-1300

DR. LAURA ISAACS RANKIN MD

Internal Medicine (Nephrology)

3366 NW EXPRESSWAY, STE 550
OKLAHOMA CITY, OK 73112

Oklahoma County (405) 942-5442

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 Neil Crittenden's NPI number?

The NPI number for Neil Crittenden is 1598907115. It was assigned to this individual provider in the NPPES registry on March 27, 2009.

Where is Neil Crittenden located?

Neil Crittenden practices at 3366 NW Expressway Suite 400, Oklahoma City, OK 73112. The listed phone number is (405) 702-1300.

What is Neil Crittenden's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Is Neil Crittenden enrolled in Medicare?

Yes. Neil Crittenden 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 Neil Crittenden's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Neil Crittenden reassigns Medicare benefits to 4 organizations: Digestive Disease Specialists Inc (Oklahoma City, OK), Integris Ddsi Endoscopy Centers LLC (Oklahoma City, OK), Integris Bass Baptist Health Center (Hennessey, OK) and Comanche County Healthcare Corp (Carnegie, OK). 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 Neil Crittenden's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Neil Crittenden accept?

Health plans from Blue Cross and Blue Shield of Oklahoma, Mending Health, Oscar Insurance Company and UnitedHealthcare list Neil Crittenden 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 Neil Crittenden affiliated with any hospitals?

According to CMS data, Neil Crittenden is affiliated with Integris Bass Baptist Health Center, Integris Baptist Medical Center, Inc, Comanche County Memorial Hospital, Integris Southwest Medical Center and Integris Canadian Valley Hospital.

When was this NPI record last updated?

The NPPES record for Neil Crittenden was last updated on July 27, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.