2026 NPPES data Obstetrics & Gynecology Physician NPI 1568464055 M.D.
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MELISSA PARKER, M.D.

Obstetrics & Gynecology Physician in ALPHARETTA, Georgia. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
284
Medicare Part D claims · 91 beneficiaries · Obstetrics & Gynecology Physician avg: 179
Generic prescribing
85%
generic claims · 15% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$151.28
7 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

MELISSA PARKER, M.D. filed 284 Medicare Part D claims in 2023 as a Obstetrics & Gynecology Physician in ALPHARETTA, Georgia, prescribing 85% generic.

284
Part D claims, 2023
85%
generic prescribing
$151.28
industry payments (Sunshine Act)

Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) — no proprietary rating or editorial opinion is applied.

MELISSA PARKER, M.D.'s Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

284 49th percentile higher than 49% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). This entry sits in this band. 400–600: 90,619 prescribers (7%). Above this entry. 600–800: 56,224 prescribers (4%). Above this entry. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source CMS Medicare Part D Prescriber Public Use File · 2023

Board-eligible specialty (heuristic — not verified)

MELISSA PARKER, M.D. practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about MELISSA PARKER, M.D.?

Quality data not reported

NPI registry status

Active

Issued 08/15/2005

NPI 1568464055

Primary specialty

Obstetrics & Gynecology Physician

Mid-sized

44,313 US NPIs in this specialty

Medicare Part D claims

284 59% vs specialty avg

2023 prescription claims

Specialty avg: 179

Specialty distribution in Georgia

How Obstetrics & Gynecology Physician compares to other specialties among Georgia providers

Georgia providers

Obstetrics & Gynecology Physician share within Georgia

1. Obstetrics & Gynecology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Obstetrics & Gynecology Physician share within Georgia

Specialty board-certification context

Estimated specialty board-certified rate — Obstetrics & Gynecology Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Obstetrics & Gynecology Physician ABMS/AOA estimate

Est. board-certified rate (Obstetrics & Gynecology Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Obstetrics & Gynecology Physician) — ABMS / AOA estimate

The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.

Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).

MELISSA PARKER, M.D. appears in the CMS NPPES registry as a Obstetrics & Gynecology Physician provider holding M.D. credentials at 11975 MORRIS RD, ALPHARETTA, GA, 30005, with a listed phone of (770) 751-3600. NPI 1568464055 was issued on 08/15/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what PARKER most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 284 prescription claims written by this provider, covering 91 Medicare beneficiaries and totaling roughly $22K in drug spend, split 15% brand-name and 85% generic by claim count, with an opioid prescribing rate of 3.9%. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Obstetrics & Gynecology Physician is a mid-sized specialty nationwide, with 44,313 enrolled providers across 56 states and an average of 179 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

11975 MORRIS RD
ALPHARETTA, GA 30005

Provider Details

NPI 1568464055
Specialty Obstetrics & Gynecology Physician
Credentials M.D.
Gender Female
NPI Issued 08/15/2005

Industry payments received (2024) — CMS Open Payments transparency data

The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for MELISSA PARKER, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$151

Largest payer

Organon Llc

Most common payment type

Food and Beverage

Industry payments are not necessarily indicators of bias — they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.

Brand vs generic prescribing mix · Typical

MELISSA PARKER, M.D. — brand share 15.0%
Specialty average (est.)

15% brand-name claims vs 85% generic, on 284 2023 Medicare Part D claims.

The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

284
Total Claims
$22K
Total Drug Cost
91
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
486
Total Day Supply
13,201
Brand vs Generic
15% brand / 85% generic
Brand Drug Cost
$14K
Generic Drug Cost
$8K
Opioid Claims
11 (3.9% rate)
Antibiotic Claims
17

Patient Demographics

Average Patient Age
70.2 years
Avg HCC Risk Score
0.69

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

What MELISSA PARKER, M.D. prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Gabapentin
31
Estradiol
29
Sertraline Hcl
16
Fluconazole
15
Venlafaxine Hcl
12
Tramadol Hcl
11
Progesterone
"Progesterone
N/A

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Obstetrics & Gynecology Physician Overview

How MELISSA PARKER, M.D. fits within the Obstetrics & Gynecology Physician landscape nationally.

44,313
Obstetrics & Gynecology Physician Providers in US
56
States with Obstetrics & Gynecology Physician
179
Avg Claims per Provider

MELISSA PARKER, M.D.'s 284 claims are above the specialty average of 179.

Nearby Obstetrics & Gynecology Physician Providers in Georgia

Other clinicians with the same primary specialty enrolled in Georgia, drawn from the same CMS NPPES roster as PARKER.

Compare Obstetrics & Gynecology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is MELISSA PARKER, M.D.'s specialty?
MELISSA PARKER, M.D. specializes in Obstetrics & Gynecology Physician and practices in ALPHARETTA, Georgia. Credentials: M.D..
How much does MELISSA PARKER, M.D. prescribe under Medicare Part D?
In 2023, MELISSA PARKER, M.D. wrote 284 Medicare Part D claims totaling $22K in drug costs for 91 beneficiaries.
Where is MELISSA PARKER, M.D. located?
MELISSA PARKER, M.D. is located at 11975 MORRIS RD, ALPHARETTA, GA, 30005. Phone: (770) 751-3600.
What is MELISSA PARKER, M.D.'s NPI number?
MELISSA PARKER, M.D.'s National Provider Identifier (NPI) is 1568464055, issued on 08/15/2005.
Does MELISSA PARKER, M.D. prescribe more brand-name or generic drugs?
MELISSA PARKER, M.D.'s prescribing is 15% brand-name and 85% generic drugs by claim count, with $14K in brand drug costs.
Does MELISSA PARKER, M.D. prescribe opioids?
Yes, MELISSA PARKER, M.D. had 11 opioid claims in 2023 with an opioid prescribing rate of 3.9%.
How many Obstetrics & Gynecology Physician providers are there in the US?
There are 44,313 Obstetrics & Gynecology Physician providers across 56 states in the US. The average Obstetrics & Gynecology Physician provider writes 179 Medicare Part D claims per year.
What drugs does MELISSA PARKER, M.D. prescribe most often?
Based on 2023 Medicare Part D data, MELISSA PARKER, M.D.'s most frequently prescribed drugs include Gabapentin, Estradiol, Sertraline Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does MELISSA PARKER, M.D. accept Medicare?
MELISSA PARKER, M.D. appears in CMS Medicare data with 284 Part D claims and 91 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MELISSA PARKER, M.D.'s credentials?
MELISSA PARKER, M.D.'s NPI is 1568464055 with credentials M.D.. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.

Data Sources

Provider Directory
CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
Specialty Classification
NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
Limitations
Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.

See our complete data methodology for details on how we collect and process government data.

Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).

Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology