Are you Maureen U. Welker, MSN, NPC, CCRN? This profile is yours to edit: update your address, phone, photo and services.
Edit this profileAt a glance
- 26800 Crown Valley Pkwy, Suite 330, Mission Viejo, CA 92691
About Maureen Welker
Listed in the NPI registry as a nurse practitioner — family, Maureen U. Welker, MSN, NPC, CCRN practices in Mission Viejo, CA. According to Medicare claims data, Maureen cared for 219 Medicare patients across 59,867 services. The services billed most often include injection, tocilizumab, 1 mg, injection, inclisiran, 1 mg, and injection, abatacept, 10 mg (code may be used for medicare when drug administered under the direct supervision of a physician, not for use when drug is self administered). NPI 1386608438 identifies this record in the national registry.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (929) 364-7246
- Email not available
Is this your home address or personal number? Hide it
Practice Locations
26800 CROWN VALLEY PKWY SUITE 330
Mission Viejo, CA 92691
Conditions and Services Within This Provider's Scope
Within Nurse Practitioner - Family generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Most searched conditions
Allergies
Allergy & skin
Blood disorders
Bone & joint
Dermatology
Digestive
Digestive health
Eye conditions
Heart health
Hormones & endocrine
Infections
Men's health
Mental health
Metabolic & weight
Nerve & joint
Nerve & spine
Neurological
Pain
Pain & spine
Pediatric infections
Respiratory
Skin
Sleep
Urinary health
Women's health
Procedures & services
Chronic condition care
Dermatology
Diagnostic screening
Evaluation & Testing
Hormones & endocrine
Injury care
Lab tests
- COVID-19 testing
- Cholesterol screening
- Hemoglobin A1c Test
- Rapid strep testing
- Thyroid Blood Test
- Urine Drug Screen
Mental health
Minor procedures
- Burn and Wound Care
- Superficial foreign-body removal
- Incision and drainage of an abscess
- Ingrown toenail removal
Minor surgery
Physical exams
Prescriptions
Preventative care
Preventative exams
Sexual health
Skin procedures
Sleep
Urgent care
Weight management
Women's health
- IUD insertion and removal
- Pregnancy Confirmation Test
- Birth control counseling
- Contraceptive implant insertion and removal
- Pap smear
- Well-woman exam
Most searched procedures
Allergies
Diagnostic tests
Ear, nose & throat
Heart health
Injections
Lifestyle counseling
Neurological care
Occupational health
Pain management
Respiratory care
Screenings
Procedures Most Often Billed to Medicare
59,867 services · 219 patients · 10 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less | Treatment | 96365 |
190 | More often than most peers in Nurse Practitioner, Family |
| Injection of drug or substance under skin or into muscle | Treatment | 96372 |
138 | More often than most peers in Nurse Practitioner, Family |
| Infusion into a vein for therapy, prevention, or diagnosis, each additional hour | Treatment | 96366 |
126 | As often as other peers in Nurse Practitioner, Family |
| Administration of chemotherapy into vein, each additional hour | Treatment | 96415 |
78 | More often than most peers in Nurse Practitioner, Family |
| Administration of chemotherapy into vein, 1 hour or less | Treatment | 96413 |
45 | As often as other peers in Nurse Practitioner, Family |
| Injection, tocilizumab, 1 mg | Drug given | J3262 |
47,160 | More often than most peers in Nurse Practitioner, Family |
| Injection, inclisiran, 1 mg | Drug given | J1306 |
5,680 | Less often than most peers in Nurse Practitioner, Family |
| Injection, abatacept, 10 mg (code may be used for medicare when drug administered under the direct supervision of a physician, not for use when drug is self administered) | Drug given | J0129 |
3,150 | As often as other peers in Nurse Practitioner, Family |
| Injection, infliximab, excludes biosimilar, 10 mg | Drug given | J1745 |
1,920 | As often as other peers in Nurse Practitioner, Family |
| Injection, denosumab, 1 mg | Drug given | J0897 |
1,380 | Less often than most peers in Nurse Practitioner, Family |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other nurse practitioners at this location 2
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 8
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 32 related providers in 4 groups
Other nurse practitioners in Mission Viejo 8
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 1998 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less 8
Providers in CA who bill this service to Medicare most often.
Common questions
What kind of doctor is Maureen U. Welker, MSN, NPC?
Maureen U. Welker, MSN, NPC is a nurse practitioner in Mission Viejo, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Nurse Practitioner — Family”.
NPI registry
What is Maureen U. Welker, MSN, NPC's address?
Maureen U. Welker, MSN, NPC is listed at 26800 Crown Valley Pkwy Suite 330, Mission Viejo, CA 92691. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Maureen U. Welker, MSN, NPC?
The number on file is (929) 364-7246. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Maureen U. Welker, MSN, NPC's NPI number?
Maureen U. Welker, MSN, NPC's National Provider Identifier is 1386608438. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Maureen U. Welker, MSN, NPC train?
Maureen U. Welker, MSN, NPC attended Other, graduating in 1998. This comes from the CMS National Downloadable File.
CMS public data
How long has Maureen U. Welker, MSN, NPC been practicing?
Maureen U. Welker, MSN, NPC has 28 years experience. Calculated from a graduation year of 1998, reported in the CMS National Downloadable File.
CMS public data
What procedures does Maureen U. Welker, MSN, NPC perform?
According to Medicare billing data, Maureen U. Welker, MSN, NPC provides treatments such as infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less and injection of drug or substance under skin or into muscle. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Maureen U. Welker, MSN, NPC confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Maureen U. Welker, MSN, NPC. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.