Mary Ann Abbass, C.N.M.
Mary Ann Abbass, C.N.M. is a provider specialising in Advanced Practice Midwife in Royal Oak, MI, registered under NPI 1003245622.
Getting there
Here is what surrounds this office in Royal Oak, based on OpenStreetMap data collected Aug 29, 2026. Parking is available about 133 ft away. The nearest transit stop is 0.22 mi away, served by 13 Mile / Woodward (WB). A pharmacy sits 0.34 mi from the entrance (Walgreens), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 0.36 mi away.
Getting here and what is nearby
Parking 37 ft ~1 min
Parking 82 ft ~1 min
Parking 133 ft ~1 min
Grocery Woodward Corner Market 530 ft ~3 min
30955 Woodward Avenue, Royal Oak 48073
Mo-Su 07:00-22:00
Transit 13 Mile / Beaumont Hospital (EB) 741 ft ~3 min
Restaurant Bucharest Grill Express 824 ft ~4 min
Transit 13 Mile / Beaumont Hospital (WB) 879 ft ~4 min
Restaurant Panera Bread 0.20 mi ~4 min
30955 Woodward Avenue, Royal Oak 48073
Mo 06:00-22:00; Tu 06:00-21:00; We-Sa 06:00-22:00; Su 07:00-21:00
Restaurant MOD Pizza 0.20 mi ~4 min
30955 Woodward Avenue, Royal Oak 48073
11:00-23:00
Transit 13 Mile / Woodward (WB) 0.22 mi ~5 min
Convenience Mobil Mart 0.22 mi ~5 min
Gas station Mobil 0.23 mi ~5 min
Coffee Lucky Detroit 0.26 mi ~6 min
Gas station shell 0.27 mi ~6 min
30875 Woodward Avenue, Royal Oak 48073
Pharmacy CVS Pharmacy 0.33 mi ~7 min
Pharmacy Walgreens 0.34 mi ~7 min
30852 Woodward Avenue, Royal Oak 48073
Coffee Starbucks 0.36 mi ~8 min
Distances are straight‑line estimates — walking routes may be longer. Hours and phone numbers can change; call ahead to confirm.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| 4704267581 | MI | Advanced Practice Midwife primary |
This provider holds licence 4704267581 issued in MI. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
This NPI does not appear in the PECOS Medicare enrolment file. Providers who do not bill Medicare — or who bill only through a group's enrolment — will not appear here. It is not a sign of any problem with the registration.
What Advanced Practice Midwife covers
Advanced practice midwifery encompasses the independent provision of care during pregnancy, childbirth, and the postpartum period; sexual and reproductive health; gynecologic health; and family planning services, including preconception care. Midwives also provide primary care for individuals from adolescence throughout the lifespan as well as care for the healthy newborn during the first 28 days of life. Midwives provide initial and ongoing comprehensive assessment, diagnosis, and treatment. Midwifery care includes health promotion, disease prevention, risk assessment and management, and individualized wellness education and counseling. NUCC Health Care Provider Taxonomy, code 367A00000X
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.
| NPI | 1003245622 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Nov 4, 2013 |
| Last updated | Jul 28, 2022 |
| Status | Active |
| Sole proprietor | No |
| Gender | Female |
| Credential | C.N.M. |
| Practice address |
3601 W 13 MILE RD Royal Oak, MI 48073 (248) 898-4021 |
| Mailing address |
26901 BEAUMONT BLVD Southfield, MI 48033 |
Number check
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 | 0 | 0 | 3 | 2 | 4 | 5 | 6 | 2 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 4 | 4 | 1 | 6 | 4 |
Sum = 48 · next multiple of 10 = 50 · check digit = 2 · actual last digit = 2
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.