DR. GEORGE PHELAN AHLERING MD
NPI 1851334957
Obstetrics & Gynecology - Gynecology in Chesterfield, MO
NPI Status: Active since June 14, 2006
Contact Information
16216 BAXTER RD
SUITE 100
CHESTERFIELD, MO
ZIP 63017
Phone: (636) 449-4700
Fax: (636) 449-2596
- Individual
- Male
- Obstetrics & Gynecology
- Gynecology
- Accepts Insurance
- PECOS Enrolled
About GEORGE AHLERING
This page provides the complete NPI Profile along with additional information for George Ahlering, a women's health care provider established in Chesterfield, Missouri with a medical specialization in Obstetrics & Gynecology, focusing in gynecology . The healthcare provider is registered in the NPI registry with number 1851334957 assigned on June 2006. The practitioner's primary taxonomy code is 207VG0400X with license number R2D12 (MO). The provider is registered as an individual and his NPI record was last updated 18 years ago.
- NPI
- 1851334957
- Provider Name
- DR. GEORGE PHELAN AHLERING MD
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 16216 BAXTER RD SUITE 100 CHESTERFIELD, MO 63017
- Location Phone
- (636) 449-4700
- Location Fax
- (636) 449-2596
- Mailing Address
- 16216 BAXTER RD SUITE 100 CHESTERFIELD, MO 63017
- Mailing Phone
- (636) 449-4700
- Mailing Fax
- (636) 449-2596
- Is Sole Proprietor?
- No
- Enumeration Date
- 06-14-2006
- Last Update Date
- 10-16-2007
- Code Navigator
Women's health care providers like George Ahlering treat and diagnose diseases and conditions that affect a woman's physical and emotional health. Women's health professionals come from a variety of different specialties, including obstetrician/gynecologists, general surgeons, perinatologists, physician assistants, nurse practitioners or nurse midwives. A women's health provider might help you with family planning, breast care, pregnancy and child birth, osteoporosis, menopause, heart disease, etc.
Location Map
Specialty - Primary Taxonomy
The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.
- Classification
Obstetrics & Gynecology Gynecology
- Taxonomy Code
- 207VG0400X
- Type
- Allopathic & Osteopathic Physicians
- License No.
- R2D12
- License State
- MO
- Taxonomy Description
- A physician who specializes in diagnosis, treatment, and management of patients with gynecologic conditions. Source: National Uniform Claim Committee
Insurance Plans Accepted
According to publicly available information the provider might be accepting the following health plans from these health insurance companies:
- Choice Bronze HSA (QualChoice) - POS
- Complete Gold - PPO
- Complete Gold + Vision + Adult Dental - PPO
- Complete Silver (QualChoice) - POS
- Connected Silver - PPO
- Connected Silver (QualChoice) - POS
- Connected Silver (QualChoiceLife) - PPO
- Connected Silver + Vision + Adult Dental - PPO
- Elite Bronze - PPO
- Elite Bronze + Vision + Adult Dental - PPO
- Elite Gold (QualChoice) - POS
- Elite Gold (QualChoiceLife) - PPO
- Everyday Bronze - PPO
- Everyday Bronze + Vision + Adult Dental - PPO
- Everyday Gold - PPO
- Everyday Gold + Vision + Adult Dental - PPO
- Everyday Silver (QualChoiceLife) - PPO
- Focused Silver - PPO
- Focused Silver + Vision + Adult Dental - PPO
- Standard Expanded Bronze - PPO
- Complete Gold - EPO
- Complete Gold + Vision + Adult Dental - EPO
- Complete Silver - EPO
- Complete Silver + Vision + Adult Dental - EPO
- Elite Bronze - EPO
- Elite Bronze + Vision + Adult Dental - EPO
- Everyday Bronze - EPO
- Everyday Bronze + Vision + Adult Dental - EPO
- Everyday Gold - EPO
- Everyday Gold + Vision + Adult Dental - EPO
- Premier Silver - EPO
- Premier Silver + Vision + Adult Dental - EPO
- Standard Expanded Bronze - EPO
- Standard Expanded Bronze + Vision + Adult Dental - EPO
- Standard Gold - EPO
- Standard Gold + Vision + Adult Dental - EPO
- Standard Silver - EPO
- Choice Bronze HSA - HMO
- Choice Bronze HSA + Vision + Adult Dental - HMO
- Clear Gold - HMO
- Clear Gold + Vision + Adult Dental - HMO
- Complete Silver - HMO
- Complete Silver + Vision + Adult Dental - HMO
- Elite Bronze - HMO
- Elite Bronze + Vision + Adult Dental - HMO
- Elite Gold - HMO
- Elite Gold + Vision + Adult Dental - HMO
- Focused Silver - HMO
- Focused Silver + Vision + Adult Dental - HMO
- Standard Expanded Bronze - HMO
- Standard Expanded Bronze + Vision + Adult Dental - HMO
- Standard Gold - HMO
- Standard Gold + Vision + Adult Dental - HMO
- Standard Silver - HMO
- Clear Silver - EPO
- Elite Bronze - EPO
- Elite Bronze + Vision + Adult Dental - EPO
- Elite Gold - EPO
- Elite Gold + Vision + Adult Dental - EPO
- Everyday Bronze - EPO
- Everyday Bronze + Vision + Adult Dental - EPO
- Everyday Gold - EPO
- Everyday Gold + Vision + Adult Dental - EPO
- Focused Silver - EPO
- Focused Silver + Vision + Adult Dental - EPO
- Standard Expanded Bronze - EPO
- Standard Expanded Bronze + Vision + Adult Dental - EPO
- Standard Gold - EPO
- Standard Gold + Vision + Adult Dental - EPO
- Standard Silver - EPO
- Standard Silver + Vision + Adult Dental - EPO
- Complete Gold - HMO
- Complete Gold + Vision + Adult Dental - HMO
- Elite Bronze - HMO
- Elite Bronze + Vision + Adult Dental - HMO
- Elite Silver - HMO
- Elite Silver + Vision + Adult Dental - HMO
- Everyday Bronze - HMO
- Everyday Bronze + Vision + Adult Dental - HMO
- Everyday Gold - HMO
- Everyday Gold + Vision + Adult Dental - HMO
- Focused Silver - HMO
- Focused Silver + Vision + Adult Dental - HMO
- Standard Expanded Bronze - HMO
- Standard Expanded Bronze + Vision + Adult Dental - HMO
- Standard Gold - HMO
- Standard Gold + Vision + Adult Dental - HMO
- Standard Silver - HMO
- Clear Gold - EPO
- Clear Gold + Vision + Adult Dental - EPO
- Complete Gold - EPO
- Complete Gold + Vision + Adult Dental - EPO
- Elite Silver - EPO
- Elite Silver + Vision + Adult Dental - EPO
- Everyday Bronze - EPO
- Everyday Bronze + Vision + Adult Dental - EPO
- Focused Silver - EPO
- Focused Silver + Vision + Adult Dental - EPO
- Premier Bronze HSA - EPO
- Premier Bronze HSA + Vision + Adult Dental - EPO
- Standard Expanded Bronze - EPO
- Standard Expanded Bronze + Vision + Adult Dental - EPO
- Standard Gold - EPO
- Standard Gold + Vision + Adult Dental - EPO
- Standard Silver - EPO
- Central Bronze - HMO
- Central Bronze + Vision + Adult Dental - HMO
- Central Gold - HMO
- Central Gold + Vision + Adult Dental - HMO
- Clear Silver - HMO
- Everyday Bronze - HMO
- Everyday Bronze + Vision + Adult Dental - HMO
- Everyday Gold - HMO
- Everyday Gold + Vision + Adult Dental - HMO
- Focused Silver - HMO
- Focused Silver + Vision + Adult Dental - HMO
- Standard Expanded Bronze - HMO
- Standard Expanded Bronze + Vision + Adult Dental - HMO
- Standard Gold - HMO
- Standard Gold + Vision + Adult Dental - HMO
- Standard Silver - HMO
- Standard Silver + Vision + Adult Dental - HMO
- Elite Bronze - PPO
- Elite Bronze + Vision + Adult Dental - PPO
- Elite Gold - PPO
- Elite Gold + Vision + Adult Dental - PPO
- Everyday Bronze - PPO
- Everyday Bronze + Vision + Adult Dental - PPO
- Everyday Gold - PPO
- Everyday Gold + Vision + Adult Dental - PPO
- Focused Silver - PPO
- Focused Silver + Vision + Adult Dental - PPO
- Standard Expanded Bronze - PPO
- Standard Expanded Bronze + Vision + Adult Dental - PPO
- Standard Gold - PPO
- Standard Gold + Vision + Adult Dental - PPO
- Standard Silver - PPO
- Clear Silver - EPO
- Elite Bronze - EPO
- Elite Bronze + Vision + Adult Dental - EPO
- Elite Gold - EPO
- Elite Gold + Vision + Adult Dental - EPO
- Enhanced Diabetes Care Silver with $0 Drug Options - EPO
- Enhanced Diabetes Care Silver with $0 Drug Options + Vision + Adult Dental - EPO
- Everyday Bronze - EPO
- Everyday Bronze + Vision + Adult Dental - EPO
- Everyday Gold - EPO
- Everyday Gold + Vision + Adult Dental - EPO
- Focused Silver - EPO
- Focused Silver + Vision + Adult Dental - EPO
- Standard Expanded Bronze - EPO
- Standard Expanded Bronze + Vision + Adult Dental - EPO
- Standard Gold - EPO
- Standard Gold + Vision + Adult Dental - EPO
- Standard Silver - EPO
- Standard Silver + Vision + Adult Dental - EPO
Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.
Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.
*Please verify directly with this provider to make sure your insurance plan is currently accepted.
Additional Identifiers
The NPI Enumerator encourages providers to submit additional identifiers with their NPI application although the submission of this information is optional. The additional identifier(s) section includes other numbers or codes currently or formerly used as an identifier for the provider by other public healthcare entities. The identifiers may include UPIN, NSC, OSCAR, DEA, Medicaid State or PIN identification numbers.
| Identifier | Type / Code | Identifier State | Identifier Issuer |
|---|---|---|---|
| 26134 | OTHER (01) | MO | B N D D NUMBER |
| R2D12 | OTHER (01) | MO | MEDICAL LICENSE,PHYS&SURG |
| A54917 | MEDICARE UPIN (02) | ||
| AA2119293 | OTHER (01) | D E A NUMBER | |
| 869736 | OTHER (01) | A B O G |
Medicare Participation & PECOS Enrollment Status
George Ahlering is enrolled in PECOS and is eligible to order or refer health care services for Medicare patients. The provider is eligible to order or refer: Part B Clinical Laboratory and Imaging, Durable Medical Equipment (DME), a Home Health Agency (HHA) and Power Mobility Devices.
What is PECOS?
PECOS is the online Medicare enrollment management system or Provider, Enrollment, Chain and Ownership System. The PECOS system is a database of providers who have registered with CMS as providers or suppliers. PECOS is the primary source of information about verified Medicare professionals. Providers that want to participate in this program need to enroll in PECOS with their NPI number to avoid denied claims.
Is the provider registered in PECOS? Yes
Eligible to Order or Refer Part B Clinical Laboratory and Imaging: Yes
Eligible to Order or Refer Durable Medical Equipment (DMEPOS): Yes
Eligible to Order or Refer a Home Health Agency (HHA): Yes
Eligible to Order or Refer Power Mobility Devices: Yes
Areas of Expertise
The following services and procedures, recently provided to Medicare patients, illustrate the range of care this provider offers. This list reflects the variety of services available to all patients visiting the practice and is based on 2022 Medicare dataset. In general, the more frequently a provider treats specific conditions or performs particular procedures, the more experienced they become in addressing similar patient needs. The provider has delivered many of the services listed below to Medicare patients. Please note that this list does not include services provided to patients who are not covered by Medicare.
Cervical or vaginal cancer screening; pelvic and clinical breast examination
Established patient office or other outpatient visit, 20-29 minutes
Screening papanicolaou smear; obtaining, preparing and conveyance of cervical or vaginal smear to laboratory
This procedure involves checking for health issues in the lower abdomen and chest area. It helps identify early signs of certain conditions, increasing the chance for successful treatment. It's a routine check-up that's important for maintaining good health.
This service was performed 36 times for 36 patientsThis 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.
This service was performed 45 times for 41 patientsA Papanicolaou smear, often called a Pap smear, is a test to check for changes in cells. A small sample is gently collected from the lower region and sent to a lab for examination. This helps in early detection of potential health issues.
This service was performed 12 times for 12 patientsPhysician Visit Costs
The pricing information below displays the copayment minimum, maximum and average amount that patients under Medicare are charged when visiting this provider as a new or established patient. Please keep in mind that these prices are just for reference purposes, and the actual prices charged by the provider might be different.
For patients covered under private health plans the prices below are also useful as healthcare pricing for private insurance is usually established as a function of Medicare prices. Private insurance covered patients should check their individual plans to determine the exact pricing.
The prices below reflect the costs for new and established patients in the 63017 ZIP code area.
New Patients Visit Costs *
The most utilized procedure code for new patients office visits is 99204
- Average New Patient Price $128.28
- Minimum New Patient Price $55.65
- Maximum New Patient Price $169.38
- Average New Patient Copayment $32.07
- Minimum New Patient Copayment $13.91
- Maximum New Patient Copayment $42.34
Established Patients Visit Costs *
The most utilized procedure code for established patients office visits is 99213
- Average Established Patient Price $69.5
- Minimum Established Patient Price $17.76
- Maximum Established Patient Price $137.92
- Average Established Patient Copayment $17.37
- Minimum Established Patient Copayment $4.44
- Maximum Established Patient Copayment $34.48
* The physician office visit costs information is generated by statistical analysis of similar providers in the same geographical area. The pricing information above IS NOT the amount charged by this provider.
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NPI Validation Check Digit Calculation
The following table explains the step by step NPI number validation process using the ISO standard Luhn algorithm.
| Start with the original NPI number, the last digit is the check digit and is not used in the calculation. | |||||||||
| 1 | 8 | 5 | 1 | 3 | 3 | 4 | 9 | 5 | 7 |
| Step 1: Double the value of the alternate digits, beginning with the rightmost digit. | |||||||||
| 2 | 8 | 10 | 1 | 6 | 3 | 8 | 9 | 10 | |
| Step 2: Add all the doubled and unaffected individual digits from step 1 plus the constant number 24. | |||||||||
| 2 + 8 + 1 + 0 + 1 + 6 + 3 + 8 + 9 + 1 + 0 + 24 = 63 | |||||||||
| Step 3: Subtract the total obtained in step 2 from the next higher number ending in zero, the result is the check digit. | |||||||||
| 70 - 63 = 7 | 7 | ||||||||
The NPI number 1851334957 is valid because the calculated check digit 7 using the Luhn validation algorithm matches the last digit of the original NPI number.
Other Providers at the Same Location
The following 20 providers are registered at the same or nearby location.
| NPI | Name / Type | Taxonomy | Address |
|---|---|---|---|
| 1326034489 | DR. MARK CHARLES KORY M.D. Individual | Dermatology | 16216 BAXTER RD SUITE 200 CHESTERFIELD, MO 63017 (636) 532-1000 |
| 1649219569 | DR. RICHARD CHRISTOPHER MUCKERMAN II MD Individual | Obstetrics & Gynecology (Obstetrics) | 16216 BAXTER RD SUITE 100 CHESTERFIELD, MO 63017 (636) 449-4700 |
| 1447359534 | ORAL SURGERY ASSOCIATES PC Organization | Dentist (Oral and Maxillofacial Surgery) | 16216 BAXTER RD SUITE 250 CHESTERFIELD, MO 63017 (636) 532-3525 |
| 1275614083 | DR. DAVID B CLARK PHD Individual | Psychologist | 16216 BAXTER RD SUITE 323 CHESTERFIELD, MO 63017 (636) 537-8222 |
| 1831276427 | ELIZABETH SUSAN O BRIEN MD Individual | Pediatrics | 16216 BAXTER RD SUITE 299 CHESTERFIELD, MO 63017 (636) 530-9999 |
| 1780756403 | MYRTO FRANGOS MD Individual | Pediatrics | 16216 BAXTER RD SUITE 299 CHESTERFIELD, MO 63017 (636) 530-9999 |
| 1780745125 | DR. CAROLYNN F WOLFF DMD Individual | Dentist | 16216 BAXTER RD #215 CHESTERFIELD, MO 63017 (636) 537-3600 |
| 1508907353 | DR. DARRYL S COHEN DO Individual | Pediatrics | 16216 BAXTER RD 310 CHESTERFIELD, MO 63017 (636) 519-8899 |
| 1841334265 | MISS LYNDSAY MARIE PLATO OTR Individual | Occupational Therapist (Pediatrics) | 16216 BAXTER RD SUITE 330 CHESTERFIELD, MO 63017 (636) 733-3330 |
| 1942339429 | DR. RICHARD L KOFKOFF MD Individual | Plastic Surgery | 16216 BAXTER RD SUITE 250 CHESTERFIELD, MO 63017 (636) 532-1717 |
| 1699807719 | ST LOUIS WOMEN'S HEALTHCARE GROUP PC Organization | Obstetrics & Gynecology | 16216 BAXTER RD SUITE 100 CHESTERFIELD, MO 63017 (636) 449-4700 |
| 1265565030 | MRS. SNOW D PAYNE MA CCC SLP Individual | Speech-Language Pathologist | 16216 BAXTER RD SUITE 330 CHESTERFIELD, MO 63017 (636) 733-3330 |
| 1245363555 | GLENN S CHENG M.D. Individual | Pediatrics | 16216 BAXTER RD CHESTERFIELD, MO 63017 (636) 519-8899 |
| 1528274594 | MS. HEATHER MARIE ANDERSON SIEBERS RNC WHNP Individual | Nurse Practitioner (Women's Health) | 16216 BAXTER RD SUITE 100 CHESTERFIELD, MO 63017 (636) 449-4700 |
| 1750573572 | FRED MICHAEL KALISH DMD Individual | Dentist (General Practice) | 16216 BAXTER RD SUITE 320 CHESTERFIELD, MO 63017 (636) 532-2228 |
| 1124209069 | CAROLYNN F WOLFF DMD PC Organization | Dentist | 16216 BAXTER RD STE 215 CHESTERFIELD, MO 63017 (636) 537-3600 |
| 1871764233 | DR. SUSAN ANN GODWIN D.M.D. Individual | Dentist (Oral and Maxillofacial Surgery) | 16216 BAXTER RD SUITE 250 CHESTERFIELD, MO 63017 (636) 532-3525 |
| 1801041918 | AMY ARGETSINGER OTR/L Individual | Occupational Therapist | 16216 BAXTER RD CHESTERFIELD, MO 63017 (636) 733-3330 |
| 1063653244 | MARSHA WEISEL Individual | Occupational Therapist | 16216 BAXTER RD SUITE 330 CHESTERFIELD, MO 63017 (636) 733-3330 |
| 1467782490 | STEPHANIE MARIE ZINK Individual | Speech-Language Pathologist | 16216 BAXTER RD CHESTERFIELD, MO 63017 (636) 733-3330 |
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1851334957, enumerated in the NPI registry as an "individual" on June 14, 2006
The provider is located at 16216 Baxter Rd Suite 100 Chesterfield, Mo 63017 and the phone number is (636) 449-4700
The provider's speciality is Obstetrics & Gynecology with taxonomy code 207VG0400X with a focus in Gynecology
The provider might be accepting Accepts: Ambetter from Arkansas Health & Wellness, Ambetter. Please consult your insurance carrier or call the provider to make sure your health plan is currently accepted.
Yes, as of June 20, 2025 the provider is registered in PECOS and is eligible to order health care services or supplies for Medicare patients. If you are a beneficiary the provider is eligible to order or refer: Part B Clinical Laboratory and Imaging, Durable Medical Equipment (DME), a Home Health Agency (HHA) and Power Mobility Devices.
Medicare beneficiaries should expect a typical cost of $128.28 with an average copayment of $32.07 for new patient appointments. Established patients should expect a typical charge of $69.5 and an average copayment of 17.37. Please review your insurance plan or contact the provider directly to determine your specific costs.
The most common procedures or services performed by this practitioner are: Cervical or vaginal cancer screening; pelvic and clinical breast examination, Established patient office or other outpatient visit, 20-29 minutes and Screening papanicolaou smear; obtaining, preparing and conveyance of cervical or vaginal smear to laboratory.
This NPI record was last updated on June 14, 2006. To officially update your NPI information contact the National Plan and Provider Enumeration System (NPPES) at 1-800-465-3203 (NPI Toll-Free) or by email at [email protected].
NPI Profile data is regularly updated with the latest NPI registry information, if you would like to update or remove your NPI Profile in this website please contact us.